the tank they would be in together would be a 40 gallon. they're both the same size (young, only 200 something grams) and about the same temperament (very rarely ever nippy. in general just two complete sweethearts) I'm asking because they seem to get along well, so I thought they might prefer to be housed together. if not, it's fine. I have another tank anyways. thanks in advance, I just want to be safe!