Nothing. There's nothing suitable for a 2.5 with no filter and with a filter just a snail.
Betta are solitary fish. Any tank mates are for us; not them. I say this having had Betta-based community aquariums for 40+ year. If you want tank mates get an aquarium at least 24" long but 30" is better so all have swim length appropriate for their species.
Betta are solitary fish. Any tank mates are for us; not them. I say this having had Betta-based community aquariums for 40+ year. If you want tank mates get an aquarium at least 24" long but 30" is better so all have swim length appropriate for their species.
