

There seems to be a strange redness that has come out on the edges of every white part of him. He has been irritable to say the least including an out right fight with the TSN leaving him badly scared up and with only one wisker left. he has been rubbing himself into the coral sand of the tank.
Tank temp 79F PH 7.8
All the readings on the tank are just fine. ammonia to N3 are zero (added note i run plant filtration along with dual canisters)
This started to show up 5 days ago sense then I have done 2 20% water changes
Appetite progressively dropped off to about half of the norm.
I have an idea as to what i think it is and started to treat the tank accordingly. There is a definite improvement in his nature and the rubbing in the sand has fully stopped. I want to here others ideas just in case I have miss diagnosed the problem.

