After seeing Chris's cold tank, I was inspired to try to come up with a way to do one myself. My idea seems a little less labor intensive and is a combination of Chris's project, and a suggestion from Cordelia Head of J and L Orchids. Ms. Head suggested that she had heard of people using old florist fridges to grow cool temperature Pleuros, etc. I don't have the room or money for a florist fridge, but I thought this might be similar: It hit me that maybe I could use a thermoelectric wine chiller to keep my temps down. Depending on the model, these keep temps anywhere between the upper 60s to the mid 40s. I could do this by manually changing the temp depending on the time of day or by setting the unit on a timer to kick on when the lights go out. I'd light it by mounting high powered LEDs like Chris has used because they are very powerful and put out very little heat. What I don't know is how the chiller unit would hold up to the humidity/ water for misting for these plants and also if air is circulated by the unit. Also, would the unit be affected by the timer turning it on and off each day? (Would it be better just always plugged in?) I'm just in the thinking/ research stage at this point. I'd love to hear everyone's input on this both positive or negative.