I have been trying to grow some peppers using DWC this winter. I have a Quantum T5HO Badboy 8 bulb lamp for light. They are upstairs and the temps during the day get to 75-80 depending on the day. At night they drop to 60. I opened the heating vent up a little more to get more heat so that should help. If you want to check out my glog it is here http://thehotpepper....pepper-project/ I have been kind of slow and getting some things going. I have been adding nutrients so they are about 500ppm. My water starts about 250ppm. I am using this for nutrients http://www.botanicar...-2-4-P43C2.aspx . I finally got a PH meter this week. I had a big vacation set up and other stuff and just put it off. After starting to regulate the PH I can see how big a difference it makes. All my plants seem to be doing good except my 7 Pod. My Purple Jalapeno which is doing the best started going crazy this week when I started regulating the PH. My Fatali and Mustard Habanero are also doing good but not growing as crazy fast as the Jalapeno is. After a nutrient change and regulating the PH hopefully it will get going. If you have any other ideas like needing higher temps or what not please reply.