Aquarium fish compatibility
Pick a fish to see who it gets along with. Pick a second one for a pair verdict.
Optional
Tank mates for “Aulonocara Eureka”
Compatible 1
Caution 64
- "Princess of Burundi"
- Aristochromis christyi
- Aulonocara baenschi
- Aulonocara hansbaenschi
- Aulonocara maylandi
- Aulonocara multicolor
- Aulonocara Orchid
- Aulonocara stuartgranti
- Black Ghost Knifefish
- Blue Dolphin Cichlid
- Blue Lamprologus
- Blue Zebra
- Boadzulu
- Brocade Catfish
- Bumblebee Cichlid
- Chinese Algae Eater
- Convict Cichlid
- Copadichromis azureus
- Copadichromis chrysonotus
- Dimidiochromis
- Dog Cichlid
- Electric Blue Hap
- Fenestratus
- Flowerhorn
- Giant Gourami
- Gold Nugget Pleco
- Golden Cichlid
- Hummingbird Cichlid
- Jack Dempsey cichlid
- Julidochromis dickfeldi
- Julidochromis ornatus
- Julidochromis regani
- Kenyi Cichlid
- Labeotropheus
- Lamprologus cylindricus
- Lavender Mbuna
- Lemon Cichlid
- Livingston's Cichlid
- Maingano
- Malawi Butterfly
- Marble Loach
- Marlier's Julidochromis
- Masked Julie
- Melanochromis chipokae
- Melanochromis johannii
- Midas Cichlid
- Neolamprologus multifasciatus
- Northern Aulonocara
- OB Mbuna
- Oscar Cichlid
- Princess Cichlid
- Protomelas
- Pseudotropheus Acei
- Pseudotropheus Daktari
- Red Devil
- Red Kadango
- Red Zebra Cichlid
- Red-tailed Gourami
- Redtail Catfish
- Spotted Pleco
- Spotted Synodontis
- Sucker Catfish
- Tapir Cichlid
- Zebra Mbuna
Not recommended 444
- Acre Corydoras
- Adolfo's Corydoras
- African barb
- Agassiz's Corydoras
- Agassiz's Dwarf Cichlid
- Albino Guppy
- Albino Zebra Danio
- Altum Angelfish
- Amanda Jane's Corydoras
- Amanda's Tetra
- Amapa Tetra
- Ancistrus Claro
- Angelfish
- Angfa Rainbowfish
- Annamia Loach
- Annamia normani
- Apistogramma macmasteri
- Araguaia Catfish
- Archerfish
- Argus Fish
- Armored Cory
- Asian Arowana
- Axelrod's Corydoras
- Azure Cichlid
- Bala Shark
- Balloon Molly
- Balloon Platy
- Banded Loach
- Banded Pencilfish
- Bankanensis Rasbora
- Beckford's Pencilfish
- Berdmore's Loach
- Berlin Swordtail
- Black and White Molly
- Black and Yellow Molly
- Black Guppies
- Black Molly
- Black Moor Goldfish
- Black Neon Tetra
- Black Platy
- Black Ruby Barb
- Black Skirt Tetra (Veiltail)
- Black Swordtail
- Black Tetra
- Black-and-white Corydoras
- Bloch's Corydoras
- Blood Red Molly
- Blue Danio
- Blue Dwarf Gourami
- Blue Gourami
- Blue Guppies
- Blue Platy
- Boeseman's Corydoras
- Boeseman's Rainbowfish
- Bolivian Corydoras
- Bolivian Ram
- Bond's Corydoras
- Boraras merah
- Boraras micros
- Boraras naevus
- Brigittae Rasbora
- Brilliant Rasbora
- Bristlenose Pleco
- Bristol Shubunkin
- Brochis britskii
- Brochis multiradiatus
- Bronze Corydoras
- Bubble Eye Goldfish
- Burgess's Corydoras
- Butterfly
- Butterfly Barb
- Butterfly Hillstream Loach
- Calico Swordtail
- Cardinal Tetra
- Celestial
- Celestial Pearl Danio
- Chalceus
- Chameleon Loach
- Cherry Barb
- Cherry Rainbowfish
- Chocolate Molly
- Chocolate Tetra
- Clown Loach
- Clown Rasbora
- Cobra Guppy
- Cochu's Corydoras
- Cockatoo Dwarf Cichlid
- Colombian Tetra
- Comet Goldfish
- Common Bristlenose Pleco
- Common Guppy
- Common Metynnis
- Common Platy
- Common Rasbora
- Congo Tetra
- Cope's Corydoras
- Coral Platy
- Corydoras acutus
- Corydoras ambiacus
- Corydoras arcuatus
- Corydoras carlae
- Corydoras concolor
- Corydoras condiscipulus
- Corydoras duplicareus
- Corydoras gracilis
- Corydoras imitator
- Corydoras incolicana
- Corydoras kanei
- Corydoras pantanalensis
- Corydoras reynoldsi
- Corydoras schwartzi
- Corydoras semiaquilus
- Corydoras simulatus
- Corydoras treitlii
- Corydoras tukano
- Corydoras virginiae
- Corydoras zygatus
- Croaking gourami
- Crown Pearlscale
- Cuban Swordtail
- Cuming's Barb
- Cupid Cichlid
- Dalmatian Molly
- Didi Barb
- Discus
- Dotted Corydoras
- Duboulay's Rainbowfish
- Dwarf Barb
- Dwarf Corydoras
- Dwarf Gourami
- Dwarf oto
- Dwarf Rasbora
- Eastern Rainbowfish
- Egg-shaped Goldfish
- Ehrhardt's Corydoras
- Elegant Corydoras
- Emerald Catfish
- Emperor Tetra
- Endler's Guppy
- Enteromius candens
- Epalzeorhynchos
- Espei Rasbora
- False Black Tetra
- False Neon Tetra
- False Network Catfish
- False Pristella Tetra
- False Rummy-Nose Tetra
- Fantail Goldfish
- Farlowella
- Fasciolatus Barb
- Fire-tailed Apistogramma
- Firefly Rasbora
- Firehead Tetra
- Flag Platy
- Flagtail Corydoras
- Flame Gourami
- Flame Tetra
- Fly River Rainbowfish
- Formosa Loach
- Four-banded Barb
- Free Molly
- Gangetic Loach
- Gastromyzon cornusaccus
- Gastromyzon ctenocephalus
- Gastromyzon farragus
- Gastromyzon lepidogaster
- Gastromyzon monticola
- Gastromyzon ocellatus
- Gastromyzon scitulus
- Gastromyzon stellatus
- Gastromyzon viriosus
- Geophagus altifrons
- Geophagus Brokopondo
- Geophagus daemon
- Geophagus dicrozoster
- Geophagus Iporanga
- Geophagus Jurupari
- Geophagus neambi
- Geophagus pellegrini
- Geophagus pindare
- Geophagus proximus
- Geophagus winemilleri
- Gladys's Corydoras
- Glass Catfish
- Glowlight Tetra
- Gold Danio
- Gold Gourami
- Gold Molly
- Golden Dwarf Barb
- Golden Sturisoma
- Golden Swordtail
- Golden Tetra
- Goldfish
- Goldie River Rainbowfish
- Goldstripe Corydoras
- Gomez's Corydoras
- Gosse's Corydoras
- Green Barb
- Green Guppies
- Green Labeo
- Green Neon Tetra
- Green Phantom Pleco
- Green Swordtail
- Greenstripe Barb
- Grey Corydoras
- Guapore Corydoras
- Guppy 'Black Prince'
- Guppy Tuxedo
- Guyana Catfish
- Half-banded Kuhli Loach
- Harlequin Rasbora
- Hawaii Platy
- Heckel Discus
- Hengel's Rasbora
- Hi-Fin Lyretail Swordtail
- Hi-Fin Platy
- Hi-Fin Swordtail
- High-fin Apistogramma
- Hoigne's Dwarf Cichlid
- Homaloptera bilineata
- Homaloptera confuzona
- Homaloptera Smithi
- Homaloptera Stephensoni
- Homaloptera tweediei
- Honey Gourami
- Hongslo's Dwarf Cichlid
- Hoppe's Otocinclus
- Hyphessobrycon elachys
- Indian Featherback
- Irian Jaya Rainbowfish
- Iridescent Shark
- Jae Barb
- Japanese Ricefish
- Jellyfish Bristlenose Pleco
- Jikin
- Julii Corydoras
- Kissing Gourami
- Kitty Tetra
- Knight Corydoras
- Kohaku Swordtail
- Koi Swordtails
- Kribensis
- Kribensis taeniatus
- Kuhli Loach
- Labeo Bicolor
- Lake Tebera Rainbowfish
- Lamberti's Corydoras
- Lemon Tetra
- Leopard Corydoras
- Leopard Danio
- Leopold's Angelfish
- Lina's Loach
- Lionhead Goldfish
- London Shubunkin
- Long-banded Barb
- Long-whiskered Catfish
- Loreto Tetra
- Lyretail Molly
- Lyretail Swordtail
- Magnum Pleco
- Maharashtra Barb
- Mahecola Barb
- Manipur Barb
- Marble Gourami
- Marble Molly
- Marbled Whiptail
- Masked Corydoras
- Melanotaenia australis
- Melanotaenia papuae
- Melanotaenia parva
- Melini's Corydoras
- Meta Corydoras
- Mickey Mouse Platy
- Moenkhausia Colletti
- Molly sphenops
- Montezuma Swordtail
- Moonlight Gourami
- Mosaic Corydoras
- Moscow Guppies
- Murray River Rainbowfish
- Myanmar Arowana
- Myers's Loach
- Nan River Gastromyzon
- Nankin
- Nannostomus anduzei
- Nannostomus harrisoni
- Nannostomus marginatus
- Nannostomus marilynae
- Nannostomus minimus
- Neon Dwarf Gourami
- Neon Guppy
- Neon Rainbowfish
- Neon Tetra
- New Guinea Rainbowfish
- Norbert's Apistogramma
- Odessa Barb
- One-lined Pencilfish
- One-spot Barb
- Oranda
- Oto Catfish
- Otocinclus affinis
- Otocinclus flexilis
- Pakistani Loach
- Panda Apistogramma
- Panda Corydoras
- Panda Goldfish
- Paradise Fish
- Parkinson's Rainbowfish
- Pastaza Corydoras
- Pavie Rasbora
- Pearl Gourami
- Pearlscale
- Pelvicachromis subocellatus
- Pencilfish
- Peppered Corydoras
- Peruvian Tetra
- Pethia canius
- Phalacronotus
- Phoenix Goldfish
- Pigmy Corydoras
- Pinheiro's Corydoras
- Pink Kissing Gourami
- Pintail Platy
- Platinum Barb
- Platinum Gourami
- Poecilia picta
- Pompon Goldfish
- Pseudohomaloptera leonardi
- Pterygoplichthys
- Purple Tetra
- Pygmy Corydoras
- Pygmy Swordtail
- Rabaut's Corydoras
- Rainbow Platy
- Rainbow Tetra
- Rainbowfish
- Ram cichlid
- Ranchu
- Rasbora dorsinotata
- Rasbora tornieri
- Red Guppies
- Red Hump Geophagus
- Red Ornate Tetra
- Red Platy
- Red Swordtail
- Red-striped Rainbowfish
- Red-tailed Chalceus
- Red-tailed Rasbora
- Redcap Oranda
- Reddish Mystus Catfish
- Reticulated Rasbora
- Reval Barb
- Royal Tiger Pleco
- Ruby Nannostomus
- Rummy-nose Tetra
- Ryukin
- Saddle Corydoras
- Saddled Hillstream Loach
- Sailfin Molly
- Salt and Pepper Corydoras
- Sands's Corydoras
- Sanke Swordtail
- Santa Cruz Corydoras
- Satanoperca acuticeps
- Satanoperca leucosticta
- Savannah Tetra
- Schaller's Gourami
- Scissortail Rasbora
- Setnai Barb
- Sewellia lineolata
- Short-snouted Corydoras
- Shubunkin
- Siamese Algae Eater
- Siamese Fighting Fish
- Silver Dollar
- Silver Moony
- Slender Rainbowfish
- Snakeskin Gourami
- Somphongs's Rasbora
- Sparkling Gourami
- Specklefin Barb
- Spiny Pleco
- Spotted Boulengerella
- Spotted Corydoras
- Spotted Geophagus
- Spotted Raphael Catfish
- Spotted-tail Corydoras
- Steindachner's Apistogramma
- Sterba's Corydoras
- Stoliczka's Barb
- Striped Rasbora
- Sumatran Barb
- Sun Barb
- Sunset Platy
- Surinam Geophagus
- Swordtail Guppies
- Telescope Goldfish
- Thorichthys meeki
- Three-lined Pencilfish
- Three-lined Rasbora
- Three-lined Tetra
- Three-striped Apistogramma
- Three-striped Rainbowfish
- Ticto Barb
- Tiger Loach
- Tiger Perch
- Tosakin
- Trinidad Tetra
- Turquoise Acara
- Turquoise Rainbowfish
- Twig Catfish
- Two-Spot Barb
- Two-striped Apistogramma
- Two-striped Nannostomus
- Two-striped Rasbora
- Ulrey's Tetra
- Umbrella Cichlid
- Van Heurn's Rainbowfish
- Variable Platy
- Veiltail Goldfish
- Veiltail Swordtail
- Vietnamese Cardinal
- Volcano Rasbora
- Wagtail Platy
- Wakin
- Weitzman's Corydoras
- Werner's Rainbowfish
- White Cloud Mountain Minnow
- White Molly
- White Platy
- White Swordtail
- White Tetra
- White-striped Corydoras
- Yellow Guppies
- Yellow Phantom Tetra
- Yellow Platy
- Yellow Tetra
- Yellow-Eyed Cichlid
- Yucatan Molly
- Zebra Danio
- Zebra Gastromyzon
- Zebra Loach
- Zebra Otocinclus
- Zollinger's Balitorid
These ratings are a simplified guide based on typical behavior, size and water (temperature, pH and hardness). Still check tank size and the temperament of individual fish before mixing species.
- Compatible — Often kept together with attention to tank size and group sizes.
- Caution — Possible with a large aquarium, hiding places, or experience; watch fin-nipping, temperament, or size gaps. Also pairs whose water only overlaps at the edge of their ranges.
- Not recommended — High risk of aggression, predation, or chronic stress, or no water that suits both species — choose other tank mates.
- Insufficient data — No behaviour assessment yet. Water is compared separately, but matching water does not mean the fish will get along.
Pair guides
- Siamese Fighting Fish + Goldfish not recommended
- Siamese Fighting Fish + Angelfish not recommended
- Siamese Fighting Fish + Common Guppy not recommended
- Siamese Fighting Fish + Neon Tetra with caution
- Siamese Fighting Fish + Black Molly not recommended
- Siamese Fighting Fish + Common Platy not recommended
- Siamese Fighting Fish + Bronze Corydoras with caution
- Siamese Fighting Fish + Sumatran Barb not recommended
- Siamese Fighting Fish + Oscar Cichlid not recommended
- Goldfish + Angelfish not recommended
- Goldfish + Common Guppy with caution
- Goldfish + Neon Tetra not recommended
- Goldfish + Black Molly with caution
- Goldfish + Common Platy with caution
- Goldfish + Bronze Corydoras with caution
- Goldfish + Sumatran Barb not recommended
- Goldfish + Oscar Cichlid not recommended
- Angelfish + Common Guppy with caution
- Angelfish + Neon Tetra with caution
- Angelfish + Black Molly not recommended
- Angelfish + Common Platy with caution
- Angelfish + Bronze Corydoras with caution
- Angelfish + Sumatran Barb not recommended
- Angelfish + Oscar Cichlid not recommended
- Common Guppy + Neon Tetra with caution
- Common Guppy + Black Molly compatible
- Common Guppy + Common Platy compatible
- Common Guppy + Bronze Corydoras compatible
- Common Guppy + Sumatran Barb not recommended
- Common Guppy + Oscar Cichlid not recommended
- Neon Tetra + Black Molly not recommended
- Neon Tetra + Common Platy with caution
- Neon Tetra + Bronze Corydoras compatible
- Neon Tetra + Sumatran Barb with caution
- Neon Tetra + Oscar Cichlid not recommended
- Black Molly + Common Platy compatible
- Black Molly + Bronze Corydoras compatible
- Black Molly + Sumatran Barb with caution
- Black Molly + Oscar Cichlid not recommended
- Common Platy + Bronze Corydoras compatible
- Common Platy + Sumatran Barb with caution
- Common Platy + Oscar Cichlid not recommended
- Bronze Corydoras + Sumatran Barb with caution
- Bronze Corydoras + Oscar Cichlid not recommended
- Sumatran Barb + Oscar Cichlid not recommended