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last question from me, I don't want to hijack

well, I don't have a fan yet, I'm designing a closet grow room that measures 4'L x 5'W x 8'H. what do you think is a good fan for that space? of course I'll make/buy a carbon filter, I definitely need odor control.

what's a passive intake? Is that an intake that gets its suction from the exhaust fan on the other end of a room? Like it just intakes from the low pressure created by the exhaust? thanks.

I'm curious about why they're not growing because I'm about to plant my sprouts into soil for the first time so in case I run into this too.

hey everyone. I'm a first timer here and growing. Just sprouted some white widow seeds in rockwool. 5 out of 6 germinated. The seed that didn't looked like a tiny hole formed in one end of the seed but it's not doing anything. The others look good though and I'll put them into soil soon...

What he means is that you need 10 seeds to get a percentage of 30. You can't have 30% of 5 seeds because you're dealing with increments of 10% per seed. For a percentage of 95, you need at least 20 seeds because you're using increments of 5% per seed. 30% of 5 seeds means that you're...

Has anyone seen the documentary "GasLand" on HBO? These people have flammable tap water. It's a very disturbing movie about natural gas mining out west.