Ewest, thanks for your prompt reply.

In the short term, at least, it looks like I may have dodged a bullet. Just did an inspection and a little fishing at lunch. There were lots of small fish in shallow and deeper water. I fished with a Storm King Bitty Minnow, which is pretty effective for bluegill and bass. I use the very small one with an ultralight. It must be 1/8 oz. or so. The smallest crank bait I have ever seen. Caught a 1.5# LMB on the first cast and two or three 6 to 8 inch bluegill. Nothing seemed to be stressed.

Not to overreact to ewest comments, but I have studied CUS04 fairly extensively in the past. This is the first time I've experienced a problem. I used Cutrine + a couple of years ago with practically no success. I don't know my water's chemistry so that may have been why Cutrine + was so ineffective. I even called the manufacturer to get their intrepretation of the formula relative to the size of my pond and applied it in the consentration they recommended.

Obviously anytime you use a caustic substance like this there are risks. This time a think I pushed the risk factor a little too far.

Ewest, I have not read all of the threads you posted so I am not sure if any addressed the long term effects with any scientific evidence. The last time i researched it and my informal discussons with Pond Boss staff and others indicate the long term effects are not well established. I have a fairly fertile fishery which has been in my family since we built it in 1954 and I shutter to think how much CS has been applied. Of course, that is one of the reasons I had the aireation installed last year.

Bing

"I love living. I have some problems with my life, but living is the best thing they've come up with so far." � Neil Simon,