justinx
Active Member
My tank has been running for about 4 months (reef tank) and i have 3 fish. 2 false percs and a lawnmower blenny that have all been in the tank for at least two months with out a problem. Yesterday, the smaller of the two false percs started hanging around the surface of the tank off in the corner. His breathing is somewhat rapid, but nothing terrible. he is defenitely eating, and all the other fish in the tank are doing very well. Is this something that i should be concerned about? Can disease just appear out of nowhere or must it be introduced?