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Hey guys, Bought this light used for $250 https://hydrobuilder.com/sun-system-630-watt-lec-grow-light-fixture-with-dual-lamps.html I know a lot of people don't like using glass because it blocks uv-b and some say creates more heat. Any one have an opinion on whether I should leave glass or...

How important do you guys think good filters are for passive intakes? When making passive intakes I notice a lot of filters will slow down air movement dramatically. Has anyone found filters that work or is panty hose level filtration the best we can do generally?

Hey guys, I'm almost done setting up my first room. All my seeds have popped, I just need to create intakes. I have an 8" exhaust for a 8.5 x 5 x 7 room. The room is pretty well sealed. I live in southern California so the weather is pretty mild. A: I can create passive intakes to pull air...

Hey guys, This is my first indoor grow. I'd like to grow in soil my first run. Can you give me some ideas on how many plants to grow? I know the light is usually a 3x3 footprint. Appreciate the advice. I have this hood with a prism ballast ...

Hey guys, I have a 5 x 8.5 ft room attached to my house with pitched ceiling from 7.5 to 6.5 ft high. Here's a simple diagram, the door opens into the house. I can probably get the room sealed up pretty well using panda film and duct tape but it won't be perfect. I want to use a 630w CMH in...

Hey guys, I'm a first timer and these are outdoor. Went into flower not that long ago. We've had a few hot days here (up around 100 sometimes). They're in fabric pots, the temp of the pots doesn't seem to be getting too bad when I go out there and touch them. I've been doing more frequent...

Hey guys, brand new grower here. Well my outdoor ladies are needing quite a bit of water as they grow and I'm getting pretty tired of mixing up 5 gallon jugs inside every other day. I have a 50 gallon rain water collection barrel laying around the yard. Looks like this except I did not pay $150...

Hey guys, Beginning grower here. I planted her beginning of spring. She looks great overall but a couple of the largest fan leaves are getting yellow like this. I've tried to figure it out on my own but I'm not sure. Maybe nitrogen? Would it be common to only show on big lower fan leaves like...

Hey guys Noticed some spider mites on my outdoor plants recently. I have neem, safer soap, and captain Jack's spinosad. Can anyone advise me on the best way to use these? I read on these forums that 10 mil neem plus 5 mil baby shampoo per gal is a good neem mixture but otherwise I'm in the dark...

Note: I'm inexperienced and I'm looking for advice. If you can help me improve on any of this I would really appreciate it. Lights: I'm thinking to run 2 separate Philips 3100k 315's side by side in a 4x4 tent. Ideally I'd have the ballasts outside the tent. I'm not sure what style of hoods to...