18" and 24" CFLs? do you mean fluorescent tubes? and ditch the tin foil as it can cause hot spots. use flat white paint instead.

get a thermometer and hygrometer. temp is very important. especially when you start running the 400W HPS. expect to get some more fans.

i might just be blazed, but i didn't see the strain that you are growing.

definitely be careful with the MG. it has nutes in it. and you are nuting extra on top of that? you shouldn't be giving nutes until the plant hits the fourth or fifth node.

like irydyum said, get some way to measure your pH. a freshwater aquarium kit at the least, or better yet a digital pen.

also like irydyum said, do your research

sorry to sound like a parrot.


-shake