I actually just swtched them into those pots and to the 1000w hps 3 days ago but the room is in the basement which is the coldest floor in the house 10 or 15 degrees different then the rest of the house...but right now I don't gotta fan just the exaust fan that's in the bathroom and I keep yhe door open... So it doesn't get to to hot in there but all I've used for them is simple miracle grow potting soil so far... Any suggestions