Quote Originally Posted by Mr Cob View Post
So this is crazy but I can't figure what's going on...my tank parameters are in check. My purple tang and kole eye have ich.

I have never had a problem with ich in the past and I have narrowed it down to two things:

1) My temp... has been unstable the last few days with 5+ swing... I added another heater to help stabilize the low temps

2) This one is going to sound crazy but I think the ich could have been caused by the stress my fish may have gotten as a result of the LOUD Karoake playing over the last 3 days (continuous play). The tank and PS3 are in the same room...living room.

Your thoughts...?
Loud noise will cause vibrations in the water. However, to fish, it will be no more than current changes. No artificial current provided in a closed system will ever match that of a "true ocean environment." Over how many hours is the 5+ temp change? If over one or two hours that could be the cause. But if it is AM to PM and gradual it could/could not be the issue. I would bet it is the additional motion/activity around the tank. The sheet is a good move. Let us know how it goes.