Dear readers, I have had enough of my deep water culture system. I don't have the time to constantly add frozen water bottles to it. I was thinking about buying a resevoir chiller but am in the process of concluding that I might as well just buy an ebb and flow system since it is 2 hundred dollars cheaper than the chiller. There is one thing I desperately need help with though. It is... Do you have to keep the temperature of an ebb & flow reservoir as low as you do with a deep water culture system? Big thanks to all who have helped me! Peace.