Just remake the cover for the FT, got rid of the galvanized metal mesh that I was using as a safety barrier for the Grandkids. Went with black vinyl window screen and vinyl lattice work with more wood reinforcement. Cuts down on the debris and probably the heavy metals in the FT, should be better all the way around.
I used a hot tub cover over the FT last night, the water temp was at 70 at sundown and went up to 72 by morning. Pretty good...not only did it hold the heat in went up by 2 degrees, even with the outside temp dropping to around 50.
Fish are large enough to get a decent picture of them now.
Nitrates are up and I will be putting my starter plugs in shortly.
If you want to see my before pictures go to "Fire Pit ... AP" by Apollo. Thanks