Wow what a fantastic site and forum. Just found it and I know I'll be spending a lot of time here!

Here's my question - I have a 1/3 acre pond that is about 80-90% covered with watermeal. Before I knew what I was doing I applied Cutrine Plus (sparingly) and got a big fish kill - lost about 75 catfish and a few bass and bluegill, but fortunately it didn't kill everything. Now I've learned that Sonar AS is the best treatment.

Here's my question - Is it safe to apply it now or should I wait for cooler weather. Since it takes 60-90 days for the Sonar to work the water should be plenty cool by the time the watermeal dies. Does this seem like a safe approach? I don't want another fish kill and lose what I have left.

I use a homemade aerator (24x7) made from a 1/2 HP pool pump, it picks up water from about 4 feet down and sprays it out on the surface (kind of a like a fountain except it sits on the shore).