My first DWC grow is about to go underway and I was trying to find out ways to cool my water temps since I can't get a chiller ( $$$ and no reservoir ) I heard about some people taking a mini fridge, drilling holes into it, and putting the air pump inside the mini fridge so it pulls in cold air and sends it to the buckets. Anyone ever hear of this and know if it works? I am willing to try anything right now.