Turtle 420
It is going into a tank 3'x8' x2'H with 4 400 watt lights HPS HID on mover I started with a home made units that did not work they give up. so I loaded it back up with water till now and started over and it looks like it is working so far. the tank is cool Complete Mini-Doser System (TDS/pH) CO2 Controller w/ Fuzzy Logic, dehumidifier and fogger all on a puter Complete Greenhouse Controller. 13'x48'x 7.5'H room covered in 6 inch of Styrofoam No heat.