Hey all, wanted to see what advice and experiences y'all have had with fish being aggressive in smaller tanks, and how to deal with it. I recently added a pair of firefish to my frag reef and their behavior has changed drastically from the fish store, to QT, to now. I was under the assumption they were a mated pair, or at least a male/female pairing, I'd observed the two in a pair at my lfs in a tank with a dozen or so firefish, and have been sleeping together the past month while under quarantine, without any serious aggression. Now 3 days after the move to the DT are displaying some serious aggression, with one really tearing into the others fins.
I don't think they're hermaphroditic fish, and am wondering if having an environment with more fish could have triggered the change in behavior. Anyone have any advice or experience reducing this kind of aggression or thoughts on what could have triggered the change?
I don't think they're hermaphroditic fish, and am wondering if having an environment with more fish could have triggered the change in behavior. Anyone have any advice or experience reducing this kind of aggression or thoughts on what could have triggered the change?