Emma said:the undergravel filter shouldn't affect the bubble nest. If it were me i think i would get him one bcause even if they can survive in bad water, that shouldnt mean they should have to!
No they are not used to stagnant waters. The bettas sold today are bred in clean and healthy water the same as other fish. The only place you are likely to find them in stagnant water is in the pet stores and that is because of the laziness of the employees or the ignorance of what they need.gammerus said: