A. calvus don't need to be pairing.. They can be kept as colonies, with multiple females.DJRansome said:Six shellies.
Calvus buy six rehome four.
It is difficult to find and expensive to find a mated calvus pair, but that is the only way I would buy 2. A mated pair has produced fry together in the past.
Certainly if you want more than one male, you need three or more. If you want a "colony" with one male... the male will spawn and accept multiple females in any tank 48" or longer.DJRansome said:Agree. But if a pair forms and they drive the others away? You should not remove females and leave just the pair?
I asked Razzo the secret to keeping a colony and he advised 3 males with a large number of females. I thought that would be more workable in 48x18?
I have found this to be true in my 36" tank (pair) and my 48x18 tank (colony) but my data is drawn only from Razzo's advice and my two calvus tanks.
Well and my 72" tank but in that case it was 2 males I had trouble with.