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    Anybody tried making a DIY inline UV air cleaner with UV diodes?

    Is there a diode that can do it ?
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    Diy grow box vs grow tent (which will hold the smell in better?)

    For a 4x4 grow will a plywood box with plastic “vapor shield” layer and calking hold the smell in better than a tent? Or does it all come down to using a fan and filter with the right specs and negative air pressure?
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    Strips or QB?

    I want the most efficiency possible while lighting a single 4x4 & want to save the most money possible while building the light. Am willing to fabricate & solder. Not interested in expensive kits, I hope to build something for under the cost of a spider farmer SF-4000 that will out perform it...
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    DIY vs Spider farmer sf4000

    Is it still worth it to DIY a grow light from samsung LED strips or is it cheaper to just buy a spider farmer sf-4000 ?
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    what is the law regarding selling seeds in california?

    I understand that shipping them out of state is federally illegal. what about selling hand to hand within my own legal state? is there a license required?
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    1st time DWC

    I just happen to have this stuff , was given to me. Monster Grow™ Pro https://grotek.com/product-detail/monster-grow-pro/ Monster Bloom https://grotek.com/product-detail/monster-bloom/ DynaGrow Protekt silica Diamond Nectar Humic /Fulvic These are all supplements though. Should I get a...
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    DIY organic nutes & Ferments in DWC

    Anybody have any experience running SSTs and KNF ferments in DWC?
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    How many samsung light strips do I need to veg this?

    veg space is 45" x 20" I plan to make a DWC out of a 27 gallon tote & grow one plant big as possible. Will have two of these totes on rotation between a veg closet and a bloom tent. Right now I have a 4x T5 fixture for the veg space & would like to replace that with a DIY samsung strip fixture...
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    11 bag seeds from an lb of Goji Og please advise

    I'm popping these seeds for the full moon next week. They came from an lb of Goji. What should I do to find a keeper? Assuming they dont herm. (been popping bag seeds all year and not all of em herm) & Assuming I'm lucky enough to get a male. I should probably pollinate an entire female or two &...
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    preflowering males

    I popped 20 bag seeds from an lb of some outdoor. All we know about the bag is the buds were big, seeds were big the weed smelled graprefruit-ish / gassy. About a month and a half from sprouting the males started to show sex. Then soon followed the females preflowering. Im wondering about the...
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    How far will my LEDs reach and still effectively bloom?

    Im rockin 4 vero 29c run from HLG- 320H-C2100B. My closet is 10' tall & has some built in wooden shelves about half way up. Because of those shelves (do not wish to rip them out) I only ever thought to use the bottom half of closet for bloom. Then I read Ed Rosenthal's book about 'closet...
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    What is best pot size for 4'x3', 4 week veg, soil grow?

    Which will yield better ? 3 gal or 5 gal? with 1 month veg time? Also: If I put a seedling in a 3 gal or 5 or 7 gal pot, will the plants in the 5 or 7 grow bigger than the 3 gal in same amount of time? Soil but has a gang load of perlite, LED 350W VERO29 rig
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    Give me some advice on bulking up plants in natural style.

    Havn't been growing for very long. Am using peat based organic soil, does not come hot/ no nutes in the soil. Added some perlite for aeration & some cheap bagged worm castings. Been adding alfalfa, malted barley, kelp, labs, silica, humic/fulvic acid in the soil as well as teas. But have not...
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    whats this stuff at top of my hash water?

    I made bubble hash and let the water sit out for about 3 days (instead of throwing in the fridge) . Most of those days there was a lid on the tupperware.Upon removing the lid, there was a clear-ish film on the surface of the water with globs of green stuff. Would that be the plant lipids ?
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    feeding hash water to my plants

    I wonder what good this will do. been adding some LABs & bubbling it. Kinda wish i could test for N/P/K
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    VERO 29 club

    VERO29SE (3000K 80 CRI C These ladies are ripening. Might possibly have gotten bigger tops had they been lolly-popped but we kept the bottoms for the re-veg. Will post photos of the finished flowers. At 75w each these are intense. This fixture seems to need to be pretty far from canopy.
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    Where to buy solvent for RSO in norcal?

    Where to buy ? and what kind do you reccomend?
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    What driver for 4x VERO29SE 80 CRI C ?

    Can someone please reccomend a Meanwell driver for VERO29SE "C"/70V/80 CRI version. I would like to run four of these cobs efficiently for bloom.
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    Help me plan DIY LED build for 4'x3'

    Is 4x CREE CXB3590 enough for a 4'x3' bloom closet? How many would be too many CXB3590 for that space?
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