A bunch of my bluegill have developed what i call blotches and lessions on them. It seemed to start in an area below my waterfall that is seperated from the main pond by another waterfall that is used as a level control. I could actually see the fish developing these blotches on them, then they started to die, not all at once, and not all of them had these blotches. Some small catfish have also been affected. Now some of my large bluegill in the main pond have started to die, with the same type of blotches. I dug a new small pond, and used 100% well water, added about 100 new bluegill from a great supplier, and started feeding them the same food from the small area, and noticed blotches on them within two weeks, then one death. I threw all of that feed away, as it was the only common denominator, and got new feed.
The problem started about 2 months ago, while water was still warm.
Pond is about 3/4 acre in just north of Houston, Texas.
Please help with identify problem and a way to cure.

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Billy E
Cleveland Texas

"If you never do more then you get paid for, you will never get paid for more then you do." BE