I actually have a sheet of plywood in there to give them some shade to swim under. The Styrofoam would be a good idea for floating plants. I only lost one fish yesterday and it was at the hottest part of the day. The temp only went to 88 yesterday. I think they are over their initial shock of being shipped.
I also carried 60 gallons of water from my kiddie pool and dumped it in the large pool. I noticed the water seems to have a little bit of a black color to it this morning. I don't know what happened but the tilapia really messed up the microbes this winter. I probably should have took down the whole pool and filters and cleaned it but I'm too lazy or busy. I haven't decided which excuse to use yet.
