One more thought to add to all this. Someone would somehow need to figure in the fact that colder water has the ability to hold more oxygen. There would be some additional benefit/offset to running at night with much cooler temps. Would the lower temps and increased O2 capacity at night offset the plankton input during higher temps? If so, how much?
Last year I ran the 1HP pump A LOT during the day only. This year I am running the 1/2HP pump only at night for similar duration as last year. I wish the setups weren't so different and we would have some real data to compare. I will say that if my September 2018 (1/2HP) numbers somehow compare favorably to my September 2017 (1HP) numbers things will get very interesting.
