I had two sunset micky mouse platties, and two red platties. All four are males. They spent most of their time paired off by color. One of the sunset platties died a few days ago (after about a year), and the other sunset now spends all his time hiding behind driftwood. I actually thought he was dead since he was down onthe gravel and not moving, but he came out to eat. He looks and swims very healthy, but was immeadiately send back into hiding by the red platties.
Somehow, when he lost his buddy it seems he can no longer swim out into the open. I didn't know what to do, so I moved him out of the 29 gal
and put him in my new 10 g with 5 cardinal tetras. He seems much happier now.
Does this aggressive behavior sound normal to you guys?