Soil with a unique blend of ferts i posted awhile ago the entire mix, but i am too stoned too look it up now. Im using 2 24" flo's and a 12" flo. Also a 50 watt garden light. Temp stays in mid to upper 70's sometimes low 80's but thats only when the sun warms the house. Light cycle is 24/7 (were changing soon, i just got a timer). Flo's are 2"-3" away fromt the plants and the garden light is about 1'. I water every 2-3 days, whenever it looks like the soil is getting dry all the way down