Wow. I'm wondering if the tarp idea might help in the afternoons, when temps and O2 levels are highest. Yes, it would reduce air/water mix. But if temps even out from top to bottom in the 90s, might be worth considering reducing the solar input.
Your quick action deal reminds me of Bob Lusk's warning at the start of my pond dream: More acreage isn't always best. Management is more difficult & expensive. I really didn't believe it at the time, and was disappointed that I ended up with "only" about 8 acres of pond instead of 11.
But he was right. The bigger the BOW, the more it resembles an aircraft carrier, requiring more effort to change course & slow to do so. Sometimes too slow to save the fish, as I discovered last October.
Last edited by anthropic; 06/08/18 09:19 PM.