For the thermometer...waist high, in the shade from your table. (or attached to the side of your table, out of the direct light)

They do make aquarium chillers. The 1/10hp (many different brands and prices) or even the IceProbe chiller probe would help if water temp is a problem.
Rusty Trichome Reviewed by Rusty Trichome on . Go ahead and laugh..... I spent the day installing a new 8" fan to replace my 4" fan. The jury is still out as to how effective it will be for cooling, but I can assure you of one thing, this fucking fan can and will suck a up one of your plants. CYA Goodbye, nice to know you sucka. Check it out.... So I am up in the attic and I am installing this 8" fan. It's a beast to say the least and with all the other work I have been doing to my ducting, ac and what not to perfect my grow room, I have been pretty tired Rating: 5