I have recently started a fish tank which is a 40 gallon feeder that currently has 3 blood parrots, 2 jewel cichlids, 2 firemouths, 3 red zebras and 2 Mainganos. They are all fairly small. However one of the Firemouths seemed to immediately be tentative, but otherwise seemed fine. Then, 4 days after I got them, I came to feed them and that Firemouth had frayed fins and seemed to be very beat up. That was yesterday and I am going to get a breeder net to separate him, but I am 95% sure it is too late and he or she will not make it. The other Firemouth seems fine and looks very healthy along with the other fish. Should I stay away from getting a 2nd Firemouth again? And should I immediately separate a cichlid if he seems to be staying away from everyone else?