Ok so for the past 4 to 5 weeks, a couple dead bass and a few blugill have been showing up dead in our pond, the water has been a murky brownish green and never clears up which is weird it used to be crystal clear years ago, So I thought mayby the heat had contributed to the fish kill the pond is 1/2 acre and 8 ft deep, so I go out their this morning and see fish hittin top water it has cooled way down from 90s to mid 50s, so I thought finally they are active. Only to find hundreds of dead fish all the way around the pond, I have dead bass, bluegill crappie, pearch, grass carp, and lots more dieing, I have a light coat of a greenish looking algea on the pond. I called jones fish hatchery this am to ask them if they test water which they said they do not, but suggested it sounds like a blue green algea, which can kill fish. they said when it is hot the algea is more stabil and put off less toxix stuff, but since it has colled down its probly killing the algea and have a lot of toxic stuff in the water, but they could not be sure? So what do you guys recommend I do? I am located in north east Indiana.
Thanks
Jason