Dear Community ! I am planning to buy 4 Frontosa. I saw in a local fish shop today has a batch of them , 1 to 2 inches, around hundreds of them in a tank. But the thing is I want to buy 2 pairs ( 2 males and 2 females ), but I am new to this kind of fish so I have no idea how to regconize which one is a male or which one is a female, since they're small too. Or I just have to pray for luck and randomly pick the fish ? Thanks alots for ur helps.