Using 400w HPS FFOF soil in one other is using FFOF mixed with this seed starter stuff but it seems to be working pretty well so far. I did have a fan in the grow room but it was making my leaves curl up so i took it out a few days ago and everything seems to be a lot better! I plan on growing this normally no topping of anything just to see what kind of results I get. This is also my first indoor grow. The bigger WR is 4-5 weeks old the other one is 1-2 weeks old but is almost just as tall as the other one! The bigger one is just 1 inch taller but very bushy and has preflowers and even has a pretty dank smell to it already.