I don't know if I have the same conditions as you, but my main pond is also acting strange and the water is strange color. We have had very little runoff this spring so the pond is about a foot low. Have had "just in time" rains so the crops look good, but little runoff. So no water exchange via outflow at the overflow pipe.

I also have aeration running on this pond. Water has almost a blackish look to it and a lot of the FA the went crazy this spring is now floating to the top dead and the wind blows it into a mat along the shoreline.

When I hand feed (actually ride a 4 wheeler around the perimeter while throwing feed out by hand), there are scores of small BG that make wakes coming towards the shore as they hear/feel the 4 wheeler approaching. Small fish are feeding actively. Large fish are absent and very slow to bite. Three of us fished an hour before sunset last night with only a few bites and no fish caught. Fish finder shows lots of fish in schools and around structure.

I might not have thought anything about it, but have an acre sized pond and two smaller ones with no aeration and the water looks much more normal. Greenish tint and healthy looking. My main pond water looks more like creek water that has little flow and lots of leaves. Kind of a dark stained look. And if there is no wind, I get the film on top of the water like you describe. Bubbles around the aeration boils (three double diffusers on a 3 acre pond).

I don't know what to make of it. The ponds without aeration look normal. My best guess is the additional DO the aeration is creating at the lower levels are "processing" the decaying FA. I had no aeration last year (except for a single diffuser for a few weeks last fall) so maybe the aeration along with the lack of normal runoff is just causing a big nutrient load to be recycled and will correct itself over time. Hopefully.

We are seasonably cool here also. 70 degrees at 8 am and this time of year we could be looking at 80 over the night. The polar vortex or whatever it is sure makes for a nice Mid-July here. Maybe has something to do with fish not biting though.

Don't have an answer for you, except to say that my BOW is acting strange also.

Last edited by snrub; 07/17/14 09:33 AM.
John

I subscribe to Pond Boss Magazine