My frontosa has been fine and recently I added some more fish. There is currently about 20-20 fish that are just over an inch and then a frontosa which is about 3-4" then an albino that's about the same . Over the past few days the frontosa has gone all black unless the lights are off and he doesn't seem very active fed then tonight and he was eating but he is now just in the corner all black. Any ideas? Is he just annoyed with all the kids running riot or is he badly?
Cheers!
Cheers!