Siamese Fighting Fish and Neon Tetra: can they live together?

Verdict:with caution

  • Behaviour: with caution
  • Water: ranges overlap

Why

It depends on the character of the individual Siamese fighting fish: some males tolerate tankmates, but this is more the exception. Neon tetras need a school of 8–10 fish. The shared temperature is 22–25 °C.

Water and size

Water and size
ParameterSiamese Fighting FishNeon TetraShared range
Temperature22 – 28 °C (72 – 82 °F)20 – 25 °C (68 – 77 °F)
22 – 25 °C (72 – 77 °F) ranges overlap
Water pH6 – 85 – 7
6 – 7 ranges overlap
Water dH5 – 191 – 10
5 – 10 ranges overlap
Size in aquarium7 cm (2.8 in)4 cm (1.6 in)
Required aquarium volumefrom 40 L (11 gal)from 54 L (14 gal)
KeepingSolitarySchooling (usually from 5–6 individuals and more)
TemperamentTerritorial (often aggressive)Peaceful (regular)
Swimming levelnear the surfacemiddle level

This is a general estimate: fish of the same species differ in character. Tank volume is given for each species separately — two species together need at least the larger of the two, and usually more.

Other pairs with these fish