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Pretty simple question. I've been duct taping carbon filters to my inline fan for several years now and it's a real pain in the ass to reach behind the fan and accurately place tape to seal the connection. Does anyone have an easier solution? I was thinking a worm screw clamp, but I figured that...

I'm having an issue with light pollution currently. Long story short, the grow room has a single standard bedroom door where light pollution is inevitable under the door. I need a way to block the light while still allowing air from the exhaust to exit the room. Cutting the door/wall is not an...

Simple question here. I measure my DG Protekt with long pipettes that are slowly accumulating silica build up which then dries out and gets dusty. This becomes an issue because then along with the fresh silica, there are dried flakes of silica in the solution. Is there a way to suck something up...

So I'm in a situation where I'm debating which will yield more, 2 three plant auto grows that function more like a perpetual grow (one tent would flower while the other handles veg), or a single grow with three traditional photoperiods. My constraints are I have a 2x4x5 tent that can handle 3...

I'm officially worried about my SF G4500. it's only a year old, but this morning the problems began. At only 50%, I began to hear a series of popping sounds. I checked the LEDs themselves as I worried maybe some blew out. When I went to turn down the dimmer dial, the entire room tripped the...

My favorite strain is GDP, but I'm not feeling confident in sourcing reliable seeds as they all ultimately derive from a handful of clone cuttings which combined with tons of imitators. I know Fem seeds aren't as stable as true M/F, but I can only fit 3 plants at a time and I can't risk even one...

Why are all oscillating fans so awful? Even brand new ones start getting loud after several months of use. Is there an alternative setup where I can post a stationary tower fan that would give full coverage airflow in a 4x2? One possibility is I can remove the base and then mount the tower...

This is my second grow with the SF GS4500, and so far it's been great. However, I have been trying to figure out how much intensity would be appropriate for each stage. I have pretty much ran it at 100% since flipping to flower, but now I wonder if that intensity is even needed until they start...

Ive been growing a few years now, but PH down (particularly phosphoric acid) has always made me suspicious that maybe the PH down isn't simply adjusting the PH of the solution going in. I've since learned more about carbonate/bicarbonates, alkalinity, etc. but I'm still unsure if PH down works...

A couple of basic questions: I know that for hydro setups, enzymes like zyme can help filter and clean out the slime to keep roots healthy. For soilless mixes, what do I gain by using zyme? How often should it be used? In what amounts? What situations would you use Zyme for if you don't apply it...

What exactly determines the best qualities of tap water for growing and what are the limits on different aspects of the water's profile that would represent the limits for what you would feed a plant? Obviously I know there are people here that dump runoff water from a long John silvers dumpster...

I was hoping somebody could finally tell me what is happening with these brown necrotic spots on the leaves. I've been dealing with this issue in some form since atleast May 2022, and no matter how good the plants are doing, this issue seems to keep popping up and its driving me insane. The...

When I say bad water, I don't mean non potable well water or runoff water on the property etc. I'm referring to specifically city treated water with chemicals that might hurt the plants. I normally let my water sit for a day or two as I've heard it can help chlorine evaporate. The reason I'm...

I came from 2 HLG 100 R Specs so maybe I'm just drunk with power on the G4500, but it seems like the hanging heights and dimmer intensity %s are too intense. Are these numbers assuming supplemental C02 is being provided? 14-16 inches seems very close and at 60-90% in veg that seems really...

A lot of people say treat Promix like soilless mixtures, but how far does that advice go? Most people say you cant over water coco, but is the same true for Promix? I know you don't want to let the peat fully dry out. Does that mean you could potentially water it every other day? I'm trying to...

So I switched to a 430w light and the heat it's putting out at 60% is killing me in my office. I've seen people make homemade AC units which is basically a fan and an ice source. Does anyone have a homemade unit they are proud of? I was going to start with just a simple oscillating fan blowing...

I need to rant because I'm so sick of all of these garbage oscillating fans. I swear I have to buy new ones constantly as they start quiet and wind up loud as fuck. Clicking, whirring, popping. I've tried all of the usual suspects and they always wind up garbage. So far the best one has been my...

I'm finally replacing my 2 HLG 100 R Specs in my 2x4 tent after 2 1/2 years (I know weak right). ACinfinity lights seems to offer better options than SF at my tent size. Whats the most light I can fit in a 2x4? Do I go for an S33 which is for a 3x3, or maybe the EVO 3 since it's spaced out...

Looking for a little bit of confirmation on my theory for what is wrong with this plant. All the conditions are within range, but this sticks out as what I believe to be the cause. "When you have a high concentration of salts in solution (or in the root medium) compared to lower salinity levels...

https://www.pthorticulture.com/en/training-center/proper-watering-techniques-part-2/ I normally do the standard feed water feed water method with my Promix, but this is the first I've seen a recommendation to do 3 feed to every 1 plain watering. Does anyone else do this? I use Dynagro at like...