Pond Boss Forums MANAGING AN EXISTING POND Evaluating and adjusting fish populations Fish are struggling?

I'd look on the T A&M Univ. website for their pond water testing services and send a sample of water in to them to have it tested. The white stuff is most likely a fungus that was brought about by the fish being stressed.

But by having the water tested, a lot of questions can be put to rest. I don't have the number handy, but when you find it, call 'em and ask them what tests you should have done. As long as they are testing, have them test for N, P and Alk too.