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Betta (Siamese Fighting Fish) Tank Mates & Compatibility

Betta (Siamese Fighting Fish)

Betta splendens

View full care guide
TemperamentSemi-Aggressive (5/10)
Adult Size7 cm
Temperature24–30°C
Water TypeFreshwater Only
Swim ZoneSurface, Mid-level
StockingSolo only
Showing 409 - 432 of 735 Tank Mates

Betta (Siamese Fighting Fish) & Madagascar Rainbowfish

Betta splendens · Bedotia madagascariensis

Possible with Caution
Betta (Siamese Fighting Fish): Semi-AggressiveMadagascar Rainbowfish: Peaceful

Betta (Siamese Fighting Fish) & Maingano Mbuna

Betta splendens · Pseudotropheus cyaneorhabdos

Possible with Caution
Betta (Siamese Fighting Fish): Semi-AggressiveMaingano Mbuna: Aggressive

Betta (Siamese Fighting Fish) & Maison Reef Peacock

Betta splendens · Aulonocara stuartgranti "Maison Reef"

Possible with Caution
Betta (Siamese Fighting Fish): Semi-AggressiveMaison Reef Peacock: Semi-Aggressive

Betta (Siamese Fighting Fish) & Malawi Eyebiter

Betta splendens · Dimidiochromis compressiceps

Possible with Caution
Betta (Siamese Fighting Fish): Semi-AggressiveMalawi Eyebiter: Aggressive

Betta (Siamese Fighting Fish) & Malawi Gar

Betta splendens · Lichnochromis acuticeps

Possible with Caution
Betta (Siamese Fighting Fish): Semi-AggressiveMalawi Gar: Semi-Aggressive

Betta (Siamese Fighting Fish) & Malawi Hawk

Betta splendens · Aristochromis christyi

Possible with Caution
Betta (Siamese Fighting Fish): Semi-AggressiveMalawi Hawk: Aggressive

Betta (Siamese Fighting Fish) & Malaya Shrimp

Betta splendens · Caridina sp. "Malaya"

Possible with Caution
Betta (Siamese Fighting Fish): Semi-AggressiveMalaya Shrimp: Peaceful

Betta (Siamese Fighting Fish) & Malaysian Trumpet Snail (MTS)

Betta splendens · Melanoides tuberculata

Possible with Caution
Betta (Siamese Fighting Fish): Semi-AggressiveMalaysian Trumpet Snail (MTS): Peaceful

Betta (Siamese Fighting Fish) & Mamberamo Rainbowfish

Betta splendens · Melanotaenia mamberamo

Possible with Caution
Betta (Siamese Fighting Fish): Semi-AggressiveMamberamo Rainbowfish: Peaceful

Betta (Siamese Fighting Fish) & Marble Goby

Betta splendens · Oxyeleotris marmorata

Possible with Caution
Betta (Siamese Fighting Fish): Semi-AggressiveMarble Goby: Aggressive

Betta (Siamese Fighting Fish) & Marbled Bichir

Betta splendens · Polypterus polli

Possible with Caution
Betta (Siamese Fighting Fish): Semi-AggressiveMarbled Bichir: Semi-Aggressive

Betta (Siamese Fighting Fish) & Marbled Hatchetfish

Betta splendens · Carnegiella strigata

Possible with Caution
Betta (Siamese Fighting Fish): Semi-AggressiveMarbled Hatchetfish: Peaceful

Betta (Siamese Fighting Fish) & Marbled Whiptail

Betta splendens · Loricaria simillima

Possible with Caution
Betta (Siamese Fighting Fish): Semi-AggressiveMarbled Whiptail: Peaceful

Betta (Siamese Fighting Fish) & Marlier's Julie

Betta splendens · Julidochromis marlieri

Not Recommended
Betta (Siamese Fighting Fish): Semi-AggressiveMarlier's Julie: Semi-Aggressive

Betta (Siamese Fighting Fish) & Masked Julie (Julidochromis)

Betta splendens · Julidochromis transcriptus

Possible with Caution
Betta (Siamese Fighting Fish): Semi-AggressiveMasked Julie (Julidochromis): Semi-Aggressive

Betta (Siamese Fighting Fish) & Mayan Cichlid

Betta splendens · Mayaheros urophthalmus

Possible with Caution
Betta (Siamese Fighting Fish): Semi-AggressiveMayan Cichlid: Aggressive

Betta (Siamese Fighting Fish) & Mayland's Rainbowfish

Betta splendens · Melanotaenia maylandi

Possible with Caution
Betta (Siamese Fighting Fish): Semi-AggressiveMayland's Rainbowfish: Peaceful

Betta (Siamese Fighting Fish) & Mbu Puffer

Betta splendens · Tetraodon mbu

Possible with Caution
Betta (Siamese Fighting Fish): Semi-AggressiveMbu Puffer: Aggressive

Betta (Siamese Fighting Fish) & Melon Barb

Betta splendens · Haludaria fasciata

Possible with Caution
Betta (Siamese Fighting Fish): Semi-AggressiveMelon Barb: Mostly Peaceful

Betta (Siamese Fighting Fish) & Mexican Dwarf Crayfish (CPO)

Betta splendens · Cambarellus patzcuarensis

Possible with Caution
Betta (Siamese Fighting Fish): Semi-AggressiveMexican Dwarf Crayfish (CPO): Mostly Peaceful

Betta (Siamese Fighting Fish) & Midas Cichlid

Betta splendens · Amphilophus citrinellus

Possible with Caution
Betta (Siamese Fighting Fish): Semi-AggressiveMidas Cichlid: Highly Aggressive

Betta (Siamese Fighting Fish) & Midnight Catfish

Betta splendens · Auchenipterichthys coracoideus

Possible with Caution
Betta (Siamese Fighting Fish): Semi-AggressiveMidnight Catfish: Mostly Peaceful

Betta (Siamese Fighting Fish) & Milomo Hap (Super VC10)

Betta splendens · Placidochromis milomo

Possible with Caution
Betta (Siamese Fighting Fish): Semi-AggressiveMilomo Hap (Super VC10): Semi-Aggressive

Betta (Siamese Fighting Fish) & Misool Rainbowfish

Betta splendens · Melanotaenia misoolensis

Possible with Caution
Betta (Siamese Fighting Fish): Semi-AggressiveMisool Rainbowfish: Peaceful