Wondering for mid-western and Michigan Pond Bosses - what's your thermocline now that we are in mid-May 2006. What are your surface and bottom temps these days??? Trying to get a read on what's normal?
Just re-stocked rainbow trout in late March (doing great and growing fast!) in West Branch, Michigan (2/3 way up the lower peninsula of MI). 1/3 acre pond, 1/3 of pond is 12-14 ft., rest is 4-8ft. depth.
I currently have no thermocline (surprise). Have a two diffuser aerator system that I have on a timer running from 11:00pm to 8:00am. still. DO levels are at 10-11. Uniform water temp is at 60 degrees. I have about 20 gpm running into the pond 24/7 from an artesian well (constant 48 degrees). I plan on moving the aerators to the shallower depths (5 ft.).
My goal is to keep those temps down as much as possible (July can have some 90 degree days) to keep the trout alive.
What is a "normal" coldest part of thermocline temp in mid-May? Any advice?