Quote Originally Posted by SiXFeEtDeEp
k couple questions.

is there such thing as to much perlite for soil mediums? cuz i water but when i let the cups rest the top layer of soil is almost 80% perlite. now im worried that the seeds and staying moist due to to much perlite. is this a possable problem?

also i use a 120 mm fan in a 2 30gal rubbermaids. my room is an avg 70degrees somteims cooler. now should i even use a fan? using about 200+w CFLs and i got the fan right on top of the box so im worried that im not even allowing the box to get warm enough? is it possble?
It's great how this thread has turned into a Q & A for you.

As for their being too much perlite, I'm sure it's possible. I believe that you should probably have at most a 1:1 ratio. So, maybe half your medium should be perlite, but not 80%. I also already shared with you some of the different mixes you could try. Just go to like the second page of this thread and you'll see where we already had that conversation. Hope this helps!