Betta (Siamese Fighting Fish) Tank Mates & Compatibility

Betta (Siamese Fighting Fish)

Betta splendens

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TemperamentSemi-Aggressive (5/10)

Adult Size7 cm

Temperature24–30°C

Water TypeFreshwater Only

Swim ZoneSurface, Mid-level

StockingSolo only

Stocking calculator

Compatible on paper, but will Betta (Siamese Fighting Fish) fit your setup?

Tank mates can still go wrong if the tank is too small, already full, or the water is a poor match. Add Betta (Siamese Fighting Fish) to the stocking calculator to check space, stocking pressure, and water needs before you add it.

Betta (Siamese Fighting Fish)

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Showing 1 - 24 of 183 Tank Mates

Betta (Siamese Fighting Fish) & African Butterfly Cichlid

Betta splendens · Anomalochromis thomasi

🟡Possible with Caution

Betta (Siamese Fighting Fish): Semi-AggressiveAfrican Butterfly Cichlid: Mostly Peaceful

Betta (Siamese Fighting Fish) & African Butterfly Fish

Betta splendens · Pantodon buchholzi

🟡Possible with Caution

Betta (Siamese Fighting Fish): Semi-AggressiveAfrican Butterfly Fish: Semi-Aggressive

Betta (Siamese Fighting Fish) & African Jewel Cichlid

Betta splendens · Hemichromis bimaculatus

🟡Possible with Caution

Betta (Siamese Fighting Fish): Semi-AggressiveAfrican Jewel Cichlid: Aggressive

Betta (Siamese Fighting Fish) & African Lungfish

Betta splendens · Protopterus annectens

🟡Possible with Caution

Betta (Siamese Fighting Fish): Semi-AggressiveAfrican Lungfish: Highly Aggressive

Betta (Siamese Fighting Fish) & Agassiz's Dwarf Cichlid

Betta splendens · Apistogramma agassizii

🟡Possible with Caution

Betta (Siamese Fighting Fish): Semi-AggressiveAgassiz's Dwarf Cichlid: Semi-Aggressive

Betta (Siamese Fighting Fish) & Amano Shrimp

Betta splendens · Caridina multidentata

🟡Possible with Caution

Betta (Siamese Fighting Fish): Semi-AggressiveAmano Shrimp: Peaceful

Betta (Siamese Fighting Fish) & Amazon Leaf Fish

Betta splendens · Monocirrhus polyacanthus

🟢Ideal Tank Mates

Betta (Siamese Fighting Fish): Semi-AggressiveAmazon Leaf Fish: Peaceful

Betta (Siamese Fighting Fish) & Amazon Puffer

Betta splendens · Colomesus asellus

🟢Ideal Tank Mates

Betta (Siamese Fighting Fish): Semi-AggressiveAmazon Puffer: Mostly Peaceful

Betta (Siamese Fighting Fish) & Apple Snail

Betta splendens · Pomacea maculata

🟡Possible with Caution

Betta (Siamese Fighting Fish): Semi-AggressiveApple Snail: Peaceful

Betta (Siamese Fighting Fish) & Assassin Snail

Betta splendens · Clea helena

🟡Possible with Caution

Betta (Siamese Fighting Fish): Semi-AggressiveAssassin Snail: Peaceful

Betta (Siamese Fighting Fish) & Auratus Cichlid (Mbuna)

Betta splendens · Melanochromis auratus

🟡Possible with Caution

Betta (Siamese Fighting Fish): Semi-AggressiveAuratus Cichlid (Mbuna): Highly Aggressive

Betta (Siamese Fighting Fish) & Bala Shark

Betta splendens · Balantiocheilos melanopterus

🟢Ideal Tank Mates

Betta (Siamese Fighting Fish): Semi-AggressiveBala Shark: Mostly Peaceful

Betta (Siamese Fighting Fish) & Bamboo Shrimp

Betta splendens · Atyopsis moluccensis

🟡Possible with Caution

Betta (Siamese Fighting Fish): Semi-AggressiveBamboo Shrimp: Peaceful

Betta (Siamese Fighting Fish) & Banded Archerfish (Brackish)

Betta splendens · Toxotes jaculatrix

🔴Not Recommended

Betta (Siamese Fighting Fish): Semi-AggressiveBanded Archerfish (Brackish): Semi-Aggressive

Betta (Siamese Fighting Fish) & Beckford's Pencilfish

Betta splendens · Nannostomus beckfordi

🟡Possible with Caution

Betta (Siamese Fighting Fish): Semi-AggressiveBeckford's Pencilfish: Peaceful

Betta (Siamese Fighting Fish) & Bee Shrimp (Crystal Red / Black)

Betta splendens · Caridina cantonensis

🟡Possible with Caution

Betta (Siamese Fighting Fish): Semi-AggressiveBee Shrimp (Crystal Red / Black): Peaceful

Betta (Siamese Fighting Fish) & Black Ghost Knifefish

Betta splendens · Apteronotus albifrons

🟡Possible with Caution

Betta (Siamese Fighting Fish): Semi-AggressiveBlack Ghost Knifefish: Semi-Aggressive

Betta (Siamese Fighting Fish) & Black Neon Tetra

Betta splendens · Hyphessobrycon herbertaxelrodi

🟡Possible with Caution

Betta (Siamese Fighting Fish): Semi-AggressiveBlack Neon Tetra: Peaceful

Betta (Siamese Fighting Fish) & Black Pacu

Betta splendens · Colossoma macropomum

🟢Ideal Tank Mates

Betta (Siamese Fighting Fish): Semi-AggressiveBlack Pacu: Mostly Peaceful

Betta (Siamese Fighting Fish) & Black Skirt Tetra

Betta splendens · Gymnocorymbus ternetzi

🟢Ideal Tank Mates

Betta (Siamese Fighting Fish): Semi-AggressiveBlack Skirt Tetra: Mostly Peaceful

Betta (Siamese Fighting Fish) & Bladder Snail (Pest Snail)

Betta splendens · Physella acuta

🟡Possible with Caution

Betta (Siamese Fighting Fish): Semi-AggressiveBladder Snail (Pest Snail): Peaceful

Betta (Siamese Fighting Fish) & Bleeding Heart Tetra

Betta splendens · Hyphessobrycon erythrostigma

🟢Ideal Tank Mates

Betta (Siamese Fighting Fish): Semi-AggressiveBleeding Heart Tetra: Peaceful

Betta (Siamese Fighting Fish) & Blind Cave Tetra

Betta splendens · Astyanax mexicanus

🟢Ideal Tank Mates

Betta (Siamese Fighting Fish): Semi-AggressiveBlind Cave Tetra: Mostly Peaceful

Betta (Siamese Fighting Fish) & Blood Parrot Cichlid

Betta splendens · Hybrid cichlid (Blood Parrot)

🟡Possible with Caution

Betta (Siamese Fighting Fish): Semi-AggressiveBlood Parrot Cichlid: Semi-Aggressive