Homemade using 5 gallon buckets, net pots, hydroton pebbles, rock wool cubes, aquarium air pump (2 nozzle), 2 inch bubble stones. I keep the water at temp by wrapping buckets with towels, placing them in trays of ice water. Since I can only attend to them every 12 hours, I use frozen half gallon jugs as ice. The standing water will naturally keep towels moist and if you keep fan blowing on the towel it creates perfect temp! I have 3 desk fans for circulation as well as inline scrubber w/carbon filter that replaces air something like 4 times a minute. 1000w spider farm led w/38watt ufo led (for more spectrum). I only have room for two plants as it is small tent.Hey Guys.. Hope weather is better in the south... I got two questions. Is that homemade system or is it just cheaper to get 4 bucket kit? If concrete floor stays 60 65 year round, that would be good for this system right?