30 Best Discus Fish Tank Mates


What are the best discus fish tank mates for a harmonious and thriving community tank? This article provides insight into ideal fish species that complement discus fish behavior, water requirements, and compatibility, ensuring a stress-free and healthy underwater environment for all.





Zebra Loach

The Zebra Loach is an attractive and lively freshwater fish native to India, known for its striking zebra-like stripes. These social creatures are excellent at keeping the aquarium clean by consuming algae and pest snails, making them a popular choice for discus fish tank mates.


zebra loach


  • Compatibility: 4/5
  • Tank Size: 20 gallons (75 liters) minimum
  • Care Level: Moderate
  • Temperament: Peaceful
  • Diet & Feeding: Omnivore; enjoys a varied diet of flakes, pellets, and live or frozen foods
  • Adult Size: 3-4 inches (7.5-10 cm)

Zebra Loaches have a playful nature and prefer being kept in small groups of at least five to ensure their comfort and happiness. They are generally non-aggressive, making them a suitable choice for discus fish tanks. However, ensure appropriate water parameters and hiding spots are provided to establish a thriving aquarium for these playful fish.

 

Glass Catfish

Glass Catfish, also known as Ghost Catfish, are unique and captivating due to their transparent bodies. Being peaceful and schooling fish, they make excellent discus tank mates, providing a mesmerizing and serene underwater display.

                                                                Glass Catfish (Ghost Fish)

  • Compatibility: 4/5
  • Tank Size: 30 gallons (113 liters) minimum
  • Care Level: Intermediate
  • Temperament: Peaceful
  • Diet & Feeding: Omnivore; prefers live or frozen foods but will also accept high-quality flakes or pellets
  • Adult Size: 4-5 inches (10-12.5 cm)

Glass Catfish thrive in groups of at least six individuals, with plenty of hiding spots and dim lighting to make them feel secure. They prefer slow-moving water, thus ensuring a comfortable water flow is crucial. Although somewhat shy, Glass Catfish coexist well with the tranquil discus fish and share similar water parameter requirements, making them a suitable choice for a serene and harmonious aquarium.

 

Zebra Danios

Zebra Danios are small, hardy, and easy-to-care-for freshwater fish, recognizable by their horizontal stripes and slender bodies. These active and fast swimmers are popular choices for beginner and experienced aquarium enthusiasts alike.


Zebra Danios


  • Compatibility: 3.5/5
  • Tank Size: 10 gallons (38 liters) minimum
  • Care Level: Easy
  • Temperament: Peaceful, active
  • Diet & Feeding: Omnivore; eats a variety of flake, freeze-dried, and live foods
  • Adult Size: 2-2.5 inches (5-6.5 cm)

Zebra Danios enjoy schooling and should be kept in groups of at least six individuals, preferably in a long tank to allow for ample swimming space. While they can coexist with discus fish, it is essential to monitor their activity levels to minimize stress on the more tranquil discus. By maintaining compatible water conditions, appropriate tank setup, and sufficient space for both species, Zebra Danios can make energetic and vibrant additions to a discus fish community tank.

 

Clown Loach

Clown Loaches are colorful, bottom-dwelling fish recognized by their bright orange bodies adorned with black stripes. They originate from river systems in Indonesia and make interesting additions to community aquariums.


clown loach


  • Compatibility: 3/5
  • Tank Size: 75 gallons (284 liters) minimum
  • Care Level: Moderate
  • Temperament: Peaceful, active
  • Diet & Feeding: Omnivore; enjoys sinking pellets, live, and frozen foods
  • Adult Size: 10-12 inches (25-30 cm)

These social fish should be kept in groups of at least five to exhibit their full range of intriguing behaviors. Clown Loaches are naturally nocturnal and appreciate hiding spots, such as caves and driftwood, for comfort and security. Although they can share a habitat with discus fish, it is crucial to provide sufficient space and hiding spots while maintaining proper water conditions. Clown Loaches, with their bold colors and lively personalities, can enhance the visual appeal of a discus fish tank when cared for correctly.

 

Dwarf Cichlids (Apistogramma)

Dwarf Cichlids, specifically from the Apistogramma genus, are small, vibrantly colored cichlids native to the Amazon Basin. With various species and color variations, these fish display a stunning array of fins and body shapes.


apistogramma cacatuoides


  • Compatibility: 4/5
  • Tank Size: 10-20 gallons (38-75 liters) minimum
  • Care Level: Intermediate
  • Temperament: Peaceful, territorial
  • Diet & Feeding: Carnivore; prefers live or frozen foods like brine shrimp and bloodworms
  • Adult Size: 2-4 inches (5-10 cm)

Dwarf Cichlids are relatively peaceful, making them suitable for discus fish tank mates. They display territorial behavior, so it is essential to provide adequate hiding spots and sufficient space to prevent aggression. Typically, a well-planned, species-appropriate environment allows them to coexist harmoniously with other fish, such as discus. Dwarf Cichlids contribute vibrant colors and brilliant patterns to the underwater landscape, enhancing the aesthetic appeal of your aquarium.

 

Boesemani Rainbowfish

Boesemani Rainbowfish are visually stunning and active swimmer native to the waters of New Guinea. They are best known for their striking two-toned coloration, with males showcasing vibrant shades of blue and yellow.


Boesemani Rainbowfish


  • Compatibility: 3.5/5
  • Tank Size: 30 gallons (113 liters) minimum
  • Care Level: Moderate
  • Temperament: Peaceful, active
  • Diet & Feeding: Omnivore; enjoys high-quality flakes, pellets, and live or frozen foods
  • Adult Size: 4-6 inches (10-15 cm)

Boesemani Rainbowfish prefer being in schools of at least six individuals, giving them the confidence to exhibit their natural behaviors and brilliant colors. Due to their activity level, it is vital to monitor stress in the more sedate discus fish. These vibrant fish can adapt to various water parameters, making them compatible with discus aquariums when proper care is taken. Boesemani Rainbowfish add an energetic and colorful dynamic to discus fish tanks, enhancing the overall visual appeal.

 

Bloodfin Tetras

Bloodfin Tetras are small, hardy, freshwater fish known for their striking red coloration on their fins. Hailing from South American river basins, they add a pop of color to planted aquariums and make great additions to discus fish tanks.


bloodfin tetra
  • Compatibility: 4/5
  • Tank Size: 20 gallons (75 liters) minimum
  • Care Level: Easy
  • Temperament: Peaceful, active
  • Diet & Feeding: Omnivore; happily consumes flakes, pellets, and live or frozen foods
  • Adult Size: 2 inches (5 cm)

These schooling fish thrive in groups of at least six individuals, adding a lively and dynamic feel to any aquarium. Bloodfin Tetras are known for their peaceful nature and can share a tank with discus fish without causing stress. Both species have similar water conditions and temperature preferences, making Bloodfin Tetras a compatible choice for discus fish tanks. The bright red hues of these active swimmers create a captivating visual display alongside the more tranquil discus inhabitants.

 

Neon Tetras

Neon Tetras are iconic and vibrant freshwater fish, easily distinguished by their neon-blue lateral stripe and bright red tail. With their small size and peaceful nature, they make a charming addition to any community aquarium.


Neon Tetra

  • Compatibility: 4/5
  • Tank Size: 10 gallons (38 liters) minimum
  • Care Level: Easy
  • Temperament: Peaceful, schooling
  • Diet & Feeding: Omnivore; readily accepts flakes, pellets, and live or frozen foods
  • Adult Size: 1-1.5 inches (2.5-4 cm)

These social fish require a group of at least six individuals to thrive and exhibit their natural behaviors. Neon Tetras coexist well with discus fish as they share similar water parameter requirements and have compatible temperaments. Their vibrant colors contrast beautifully with the more subdued tones of discus fish, enhancing the visual appeal of the tank. Take care to maintain stable water conditions, and these glittering gems will add a mesmerizing touch to your discus fish community.

 

Rummy Neon Tetras

Rummy Neon Tetras, also known as Rummy Nose Tetras, are small, eye-catching tropical fish featuring an unmistakable red nose and unique checkerboard tail pattern. These active swimmers make beautiful additions to community tanks with discus fish.


Rummy Nose Tetra

  • Compatibility: 4.5/5
  • Tank Size: 20 gallons (75 liters) minimum
  • Care Level: Moderate
  • Temperament: Peaceful, schooling
  • Diet & Feeding: Omnivore; enjoys a mix of high-quality flakes, pellets, and live or frozen foods
  • Adult Size: 2 inches (5 cm)

Rummy Neon Tetras are best kept in groups of six or more, which enables them to showcase their stunning coloration and schooling behavior. These peaceful fish are well-suited for discus tanks due to their compatible water conditions and non-aggressive nature. The vivid reds of Rummy Neon Tetras create a striking contrast to the discus fish’s color palette, adding visual interest and liveliness to your aquarium. When cared for properly, these small marvels enhance the beauty and harmony of any discus fish community.

 

Kuhli Loach

Kuhli Loaches are fascinating, eel-like bottom dwellers with an elongated body and striking, dark stripes. Native to Southeast Asia, these nocturnal creatures bring a unique appearance and personality to the discus fish tank community.


Kuhli Loach

  • Compatibility: 4.5/5
  • Tank Size: 20 gallons (75 liters) minimum
  • Care Level: Easy
  • Temperament: Peaceful, nocturnal
  • Diet & Feeding: Omnivore; enjoys high-quality sinking pellets, live, and frozen foods
  • Adult Size: 3-5 inches (7.5-12.5 cm)

Kuhli Loaches are peaceful by nature, coexisting harmoniously with discus fish in a community aquarium setting. They prefer plenty of hiding spots like caves, crevices, and dense plant life to feel secure. Being nocturnal, Kuhli Loaches are most active during the night, foraging for food and exploring their environment. Their unique appearance and behavior make for an interesting contrast to the regal discus inhabitants. Ensure proper water conditions and tank setup to foster a thriving environment for your Kuhli Loaches and discus fish tank mates.

 

Pencil Fish

Pencil Fish, belonging to the Nannostomus genus, are slender and vibrant fish native to South America. Named for their pencil-like appearance, they exhibit captivating behavior and add a unique flair to discus fish tanks.


coral red pencilfish nannostomus mortenthaleri

  • Compatibility: 4/5
  • Tank Size: 10 gallons (38 liters) minimum
  • Care Level: Moderate
  • Temperament: Peaceful, schooling
  • Diet & Feeding: Omnivore; relishes high-quality flakes, pellets, and live or frozen foods
  • Adult Size: 1-2.5 inches (2.5-6.5 cm)

Pencil Fish are schooling fish and thrive in groups of six or more individuals. They require a calm and stable aquatic environment with plenty of hiding places among plants and driftwood. Their peaceful demeanor and preference for the middle to upper tank regions make them ideal companions for discus fish. The lively movement and striking coloration of Pencil Fish complement discus fish perfectly while adding an extra dose of personality and visual appeal to your aquarium community.

 

Cardinal Tetras

Cardinal Tetras are vibrant and popular tropical fish, easily recognized by their bright blue and red horizontal stripes. Hailing from South American waters, these small schooling fish make a captivating addition to discus fish tanks.



cardinal tetras

  • Compatibility: 4.5/5
  • Tank Size: 10 gallons (38 liters) minimum
  • Care Level: Moderate
  • Temperament: Peaceful, schooling
  • Diet & Feeding: Omnivore; readily accepts high-quality flakes, pellets, and live or frozen foods
  • Adult Size: 1.5-2 inches (3.5-5 cm)

Cardinal Tetras thrive in groups of six or more, displaying their stunning colors and schooling behavior in unity. Their peaceful nature and similarity in water conditions make them excellent companions for discus fish. Cardinal Tetras’ eye-catching colors create a visually stunning contrast with the elegant discus, enhancing the overall appearance of your aquarium. With proper care and attention to water conditions, these sparkling gems make a serene and visually appealing addition to the discus fish community.

 

Silver Tip Tetra

Silver Tip Tetra, named for the shimmering silver on their fins, are lively and attractive freshwater fish native to South America. These energetic swimmers make excellent additions to community aquariums containing discus fish.


Silvertip Tetra

  • Compatibility: 3.5/5
  • Tank Size: 15 gallons (57 liters) minimum
  • Care Level: Easy
  • Temperament: Peaceful, active
  • Diet & Feeding: Omnivore; enjoys high-quality flakes, pellets, and live or frozen foods
  • Adult Size: 2 inches (5 cm)

Silver Tip Tetras are schooling fish that require a group of at least six individuals to thrive, providing a dynamic and engaging presence in the aquarium. While they are generally peaceful and can coexist with discus fish, it is essential to monitor their activity levels to minimize stress on the more sedate discus. Overall, Silver Tip Tetras add an energetic and visually appealing element to discus fish tanks, complementing the natural beauty of the discus fish itself.

 

Rosy Tetra

Rosy Tetras exhibit a subtle beauty with their distinctive rose-colored bodies and elegant black markings. Originating from South America, these tiny yet striking fish can seamlessly complement a discus fish tank community.


rosy tetra tank mates

  • Compatibility: 4.5/5
  • Tank Size: 20 gallons (75 liters) minimum
  • Care Level: Easy
  • Temperament: Peaceful, schooling
  • Diet & Feeding: Omnivore; enjoys a mix of high-quality flakes, pellets, and live or frozen foods
  • Adult Size: 1.5 inches (3.5-4 cm)

Rosy Tetras thrive in groups of six or more and appreciate tanks with dense vegetation, providing them with ample hiding spaces. Their peaceful disposition makes them compatible tank mates for discus fish, and they share similar water parameter requirements as well. Rosy Tetras bring an alluring charm to any aquarium with their calming presence and delightful hues, enhancing the overall beauty of a discus fish community. With proper care, they can flourish alongside discus fish, contributing to a harmonious underwater environment.

 

Angelfish

Angelfish are a popular freshwater species known for their distinctive, angular bodies and elegant, trailing fins. Native to South American waters, they make eye-catching and graceful additions to discus fish tanks.


zebra angelfish

  • Compatibility: 3/5
  • Tank Size: 30 gallons (113 liters) minimum
  • Care Level: Moderate
  • Temperament: Peaceful, semi-aggressive
  • Diet & Feeding: Omnivore; readily accepts high-quality flakes, pellets, and live or frozen foods
  • Adult Size: 6 inches (15 cm) body height, 8 inches (20 cm) fin span

While Angelfish are generally peaceful, it is essential to monitor their behavior, especially during feeding, to avoid any territorial disputes. Both Angelfish and discus fish share similar water parameter requirements, and they enjoy densely planted environments. When cared for correctly, Angelfish and discus fish can coexist in harmony, adding a majestic and mesmerizing touch to your aquarium. However, it is important to ensure ample space and proper tank setup to foster a thriving and peaceful community for these stunning fish.

 

Marbled Hatchetfish

Marbled Hatchetfish are unique and captivating surface-dwelling fish, recognized by their oddly-shaped bodies and marbled coloration. Hailing from the Amazon River Basin, they add a fascinating presence to discus fish tanks.


hatchetfish

  • Compatibility: 4/5
  • Tank Size: 20 gallons (75 liters) minimum
  • Care Level: Moderate
  • Temperament: Peaceful, skittish
  • Diet & Feeding: Omnivore; prefers small live and frozen foods, but will accept flakes and pellets
  • Adult Size: 1.5-2 inches (3.5-5 cm)

Marbled Hatchetfish are schooling fish and should be kept in groups of at least six individuals. They require a secure and covered tank, as they are excellent jumpers. Their shy and peaceful disposition makes them compatible tank mates for discus fish. These unique fish inhabit the top of the tank, adding variety to the aquarium’s swimming zones. With their fascinating appearance and surface-dwelling habits, Marbled Hatchetfish contribute to a diverse and engaging discus fish community.

 

German Blue Ram

German Blue Ram, also known as the Butterfly Cichlid, is a stunning dwarf cichlid admired for its vibrant blue and yellow coloration. Native to South America, these peaceful fish make attractive additions to discus fish tanks.


german blue ram

  • Compatibility: 4/5
  • Tank Size: 20 gallons (75 liters) minimum
  • Care Level: Moderate
  • Temperament: Peaceful, slightly territorial
  • Diet & Feeding: Omnivore; enjoys high-quality flakes, pellets, and live or frozen foods
  • Adult Size: 2-2.5 inches (5-6.5 cm)

German Blue Rams require stable water conditions, similar to those of discus fish, and prefer densely planted environments with hiding spots. While generally mild-mannered, be aware of their territorial tendencies, especially during breeding. They make excellent tank mates for discus fish when properly cared for, with ample space allocated for each species. The splendid hues and tranquil nature of German Blue Rams complement the grandeur of discus fish, creating a dazzling and serene aquarium display.

 

Ember Tetra

Ember Tetras are small, fiery-colored fish that originate from Brazil’s slow-moving, tropical waterways. Their brilliant orange-red hue adds a captivating touch to discus fish tanks.


ember tetra

  • Compatibility: 4.5/5
  • Tank Size: 10 gallons (38 liters) minimum
  • Care Level: Easy
  • Temperament: Peaceful, schooling
  • Diet & Feeding: Omnivore; enjoys a mix of high-quality flakes, pellets, and live or frozen foods
  • Adult Size: 1 inch (2.5 cm)

Ember Tetras are schooling fish, preferring to swim in groups of six or more individuals. They thrive in heavily planted tanks with ample hiding spots, which help them feel secure. Their peaceful nature and similar temperature preferences make them great tank mates for discus fish.

Their energetic personalities and vibrant colors provide a beautiful contrast to the more poised and subdued discus fish, creating a visually stimulating and diverse aquarium community. Proper care and attention to water conditions will ensure a thriving habitat for both Ember Tetras and discus fish.

 

Siamese Algae Eater

The Siamese Algae Eater, native to Southeast Asia, is a useful and active fish praised for its algae-consuming abilities. They help maintain the cleanliness and overall balance of aquariums, including discus fish tanks.


Siamese Algae Eaters

  • Compatibility: 4/5
  • Tank Size: 20 gallons (75 liters) minimum
  • Care Level: Easy
  • Temperament: Peaceful, active
  • Diet & Feeding: Omnivore; primarily consumes algae, but also accepts flakes, pellets, and live or frozen foods
  • Adult Size: 5-6 inches (13-15 cm)

Siamese Algae Eaters comfortably coexist with discus fish due to their generally peaceful nature and preference for lower tank regions. They swim about in search of algae but can occasionally become territorial when they reach maturity. Providing them with sufficient hiding spots and enough space to roam is crucial. Their algae-removal skills, combined with their harmonious compatibility with discus fish, make Siamese Algae Eaters an excellent choice for a thriving discus fish community tank.

 

Bolivian Ram

Bolivian Rams, also known as Butterfly Cichlids, are attractive and peaceful fish native to the waters of Bolivia and Brazil. Their colorful and fascinating appearance makes them a popular addition to discus fish tanks.


Bolivian Ram

  • Compatibility: 4/5
  • Tank Size: 20 gallons (75 liters) minimum
  • Care Level: Moderate
  • Temperament: Peaceful, slightly territorial
  • Diet & Feeding: Omnivore; enjoys high-quality flakes, pellets, and live or frozen foods
  • Adult Size: 3 inches (7.5 cm)

Bolivian Rams prefer a densely planted environment with caves and hiding spots, helping them feel secure and comfortable. They coexist harmoniously with discus fish, but it is essential to monitor their behavior during breeding when they become more territorial. The captivating coloration and personality of Bolivian Rams enhance the visual appeal and harmony of discus fish aquariums. With proper water conditions and tank setup, Bolivian Rams can be delightful discus tank mates, contributing to a diverse and thriving underwater ecosystem.

 

Harlequin Rasbora

Harlequin Rasboras, prized for their vibrant colors and triangular markings, originate from the tranquil waters of Southeast Asia. They bring a dynamic presence to discus fish tanks through their playful and active nature.


harlequin rasboras

  • Compatibility: 4.5/5
  • Tank Size: 10 gallons (38 liters) minimum
  • Care Level: Easy
  • Temperament: Peaceful, schooling
  • Diet & Feeding: Omnivore; enjoys high-quality flakes, pellets, and live or frozen foods
  • Adult Size: 1.5-2 inches (4-5 cm)

Harlequin Rasboras are schooling fish that require a group of six or more to showcase their dazzling colors and natural behavior. They thrive in heavily planted environments, which provide ample hiding and swimming spaces. Their peaceful and compatible temperaments make them excellent tank mates for discus fish, and they share similar water parameter requirements. Given the proper care and attention to the aquarium setup, Harlequin Rasboras contribute to a visually stunning and harmonious discus fish community tank.

 

Black Neon Tetra

Black Neon Tetras are small, eye-catching fish known for their striking black stripe and shimmering silver-white band. These amazing creatures offer an alluring charm to discus fish tanks.


Black Neon Tetra

  • Compatibility: 4.5/5
  • Tank Size: 10 gallons (38 liters) minimum
  • Care Level: Easy
  • Temperament: Peaceful, schooling
  • Diet & Feeding: Omnivore; enjoys high-quality flakes, pellets, and live or frozen foods
  • Adult Size: 1.5 inches (3.5 cm)

Black Neon Tetras thrive in groups of six or more and enjoy swimming in the mid to lower regions of the tank. Their peaceful nature, compatibility with discus fish, and preference for similar water conditions make them excellent additions to discus aquariums. Black Neon Tetras add a touch of elegance and unique visual appeal to any aquarium, creating a mesmerizing swimming display alongside their discus fish companions.

 

Serpae Tetra

Serpae Tetras are attractively colored freshwater fish with a vibrant, red-orange hue and a distinct phantom-like pattern. These exotic beings originate from the Amazon River Basin, adding visual interest to discus fish tanks.


serpae tetra

  • Compatibility: 4/5
  • Tank Size: 10 gallons (38 liters) minimum
  • Care Level: Easy
  • Temperament: Peaceful, schooling
  • Diet & Feeding: Omnivore; enjoys various high-quality flakes, pellets, and live or frozen foods
  • Adult Size: 1-1.5 inches (2.5-4 cm)

Serpae Tetras flourish when kept in groups of six or more individuals, displaying their lively colors and intricate markings. Their peaceful nature and similarity in water requirements make them suitable companions for discus fish.

The brilliant hues and tranquil presence of Serpae Tetras contrast beautifully with the graceful discus fish, contributing to an engaging, visually appealing, and vibrant aquarium community. Proper care in maintaining suitable water conditions ensures a thriving and harmonious environment for Red Phantom Tetras and their discus fish tank mates.

 

Otocinclus Catfish

Otocinclus Catfish, also known as the “dwarf suckermouth,” are small, hardworking fish that specialize in algae control. Hailing from South American waterways, these industrious catfish are excellent additions to a discus fish tank.



Otocinclus Catfish

  • Compatibility: 4.5/5
  • Tank Size: 10 gallons (38 liters) minimum
  • Care Level: Moderate
  • Temperament: Peaceful, schooling
  • Diet & Feeding: Herbivore; primarily consumes algae and biofilm, with supplemental vegetables or algae wafers
  • Adult Size: 1.5-2 inches (3.5-5 cm)

Otocinclus Catfish thrive in groups of at least three individuals, displaying social behaviors and efficiently cleaning the aquarium. Their peaceful demeanor and preference for lower tank regions make them ideal tank mates for discus fish. These diligent, algae-grazing fish keep the aquarium clean, maintaining a healthy environment for all tank inhabitants. While enjoying their algae diet, Otocinclus Catfish coexist harmoniously with discus fish, creating a diverse aquatic community in a well-cared-for environment.

 

Bronze Corydoras

Bronze Corydoras, also known as Bronze Catfish, are charming bottom-dwelling fish with a gentle nature and an armored, whiskered appearance. Native to South American waterways, they make delightful additions to discus fish tanks.


bronze corydoras

  • Compatibility: 4.5/5
  • Tank Size: 20 gallons (75 liters) minimum
  • Care Level: Easy
  • Temperament: Peaceful, schooling
  • Diet & Feeding: Omnivore; enjoys sinking pellets, live, and frozen foods
  • Adult Size: 2.5 inches (6.5 cm)

Bronze Corydoras are social creatures that should be kept in groups of six or more, fostering a comfortable and active environment. They prefer a well-planted tank, keeping the substrate clean by sifting through it in search of food. Their peaceful nature, active demeanor, and appreciation for similar water conditions make them compatible tank mates for discus fish. Bronze Corydoras add an endearing touch to discus fish tanks, enhancing the overall diversity and balance within the aquatic community.

 

Guppy Fish

Guppy fish, also known as millionfish or rainbow fish, are fascinating and colorful additions to any Discus tank community. They’re widely popular and make excellent tank mates for Discus due to their peaceful nature.


fancy guppy

  • Compatibility: 4.5/5
  • Tank Size: 5 gallons (19 liters) minimum
  • Care Level: Easy
  • Temperament: Peaceful
  • Diet & Feeding: Omnivore; variety of high-quality flake foods, brine shrimp, and vegetable-based foods
  • Adult Size: 0.6-2.4 inches (1.5-6 cm)

Their small size allows plenty of swimming room for both Guppies and Discus, and they can coexist peacefully. Just make sure to provide them with adequate hiding spots and plant coverage in the tank, and both species will thrive.

 

Twig Catfish

Twig Catfish, also known as Whiptail Catfish, offer a unique and striking appearance for Discus tank environments. They are highly compatible tank mates to Discus, as they spend most of their time at the bottom of the tank, while Discus are typically found in the mid to upper region.


twigtail catfish

  • Compatibility: 4.5/5
  • Tank Size: Minimum 20 gallons (76 liters)
  • Care Level: Moderate
  • Temperament: Peaceful
  • Diet & Feeding: Herbivore; algae wafers, vegetable-based foods, blanched vegetables
  • Adult Size: 3-6 inches (7.5-15 cm)

Twig Catfish are quite shy and need plenty of hiding spots among plants, rocks, or driftwood. Since they mainly feed on algae and plant matter, they will not compete with Discus fish for food. Maintain a balanced aquarium ecosystem with stable water conditions to ensure both Twig Catfish and Discus coexist peacefully and thrive.

 

Bristlenose Plecos

Bristlenose Plecos are one of the most favored tank mates for Discus fish because of their peaceful demeanor and unique appearance. They are fantastic algae-eaters, keeping the aquarium clean and balanced.


bristlenose pleco

  • Compatibility: 5/5
  • Tank Size: Minimum 30 gallons (114 liters)
  • Care Level: Moderate
  • Temperament: Peaceful
  • Diet & Feeding: Herbivore; algae wafers, vegetables, driftwood for grazing
  • Adult Size: 4-6 inches (10-15 cm)

These bottom-dwelling fish have fascinating bristle-like structures on their heads, making them stand out among other tank mates. While they spend most of their time at the bottom of the tank, they do not compete for space with the more free-swimming Discus. Providing plenty of hiding spots through caves or dense plants and maintaining stable water parameters will ensure your Bristlenose Plecos and Discus live harmoniously.

 

Lemon Tetra

Lemon Tetra, with their vibrant yellow coloration, bring an extra pop of color to any Discus aquarium. These delightful swimmers are compatible with Discus and add an active, energetic dynamic to the tank.


lemon tetra

  • Compatibility: 4/ 5
  • Tank Size: Minimum 20 gallons (76 liters)
  • Care Level: Easy
  • Temperament: Peaceful
  • Diet & Feeding: Omnivore; quality flake food, small pellets, live or frozen food such as brine shrimp or daphnia
  • Adult Size: 1.6 inches (4 cm)

The Lemon Tetra is a schooling fish, which means they are best kept in groups of six or more to reduce stress. As they occupy the middle region of the tank, they will not compete with Discus for swimming space. Offering plenty of hiding spaces through aquatic plants and maintaining clean water conditions will ensure that your Lemon Tetras and Discus thrive peacefully in the same aquarium.

 

White Cloud Minnow

White Cloud Minnows are attractive, hardy, and undemanding fish that make delightful tank mates for Discus. They add a lively and shimmering touch to any aquarium setup.


white cloud minnow

  • Compatibility: 3.5/5
  • Tank Size: Minimum 10 gallons (38 liters)
  • Care Level: Easy
  • Temperament: Peaceful
  • Diet & Feeding: Omnivore; high-quality flake food, micro pellets, live or frozen foods like daphnia or brine shrimp
  • Adult Size: 1.5 inches (3.8 cm)

Despite being a cold-water fish, White Cloud Minnows can adapt to a wide range of water temperatures, making them compatible with Discus. They are a schooling fish, so it’s best to keep them in groups of six or more. It is essential to provide plants or other hiding spots for White Cloud Minnows to feel comfortable in their surroundings. With a balanced aquarium and frequent water changes, both White Cloud Minnows and Discus can thrive in a harmonious environment.

Conclusion

Choosing the right tank mates for your Discus is essential to ensure a harmonious and thriving aquatic environment. Explore these and other potential options to create a lively and diverse underwater world. Don’t hesitate to leave a comment and share your experiences with Discus tank mates!