Haven't been able to get much below 72F. I got it down a couple degree with cocotek covers over the pots and a couple recirculation fans, but not below 72F. I saw a ice probe water chiller that is supposed to drop Temps as much as 6-7 degs in up to 55 gals. Probably gonna get it as I don't want to suffer the I'll effects of the crud or something worse.
Thanks for the response. Additional advice welcomed.