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I almost forgot to mention, the soil and water are the same. For soil I am using a blend of roots organic with some promix, amended with lime, azomite, humic acid, myco, and a very small amount of uncooked super soil. Clearly the soil is not the issue, as the two plants pictured seem to be...

Firstly, I want to say I suspect overwatering but I want to confirm and get a solution if there is one. To preface, I have two different vegging areas, one mini cab and a 3x3 tent. All 7 plants were germinated at the same time and only the 5 in the tent exhibit the leave curling (as well as...

Yeah I may buy a couple mercury thermometers, laser thermometers are out of my budget atm (which I have exceeded two fold LOL!). But good news, it seems the screened in basement window the exhaust was going to was COATED in gunk (sawdust, lint, dog fur, etc) from the unfiltered fan I had running...

For me the only drawback of a huge CFM pull is decreased humidity... my room is sitting at 15%.

What do those of you who use humidifiers use? I'm looking for something for a 4x8 room that has a rh sensor and a programmable rh setting. My basement is dry. dry. dry. dry. We're talking 10-25% rh. Granted there are no plants in my flowering room yet but I'm not sure if they will help any...

Sike. The outdoor probe is actually reading 84, I was reading the indoor reading. So if the top section of the room is 84, and my white thermometer is reading 83 currently, I think it might be safe to assume the readings in the 90's are skewed and the more accurate temp puts it somewhere below...

I am in the basement. The room my "room" is in is cool, and typically hovers are about 58-68. With my veg tent (which has open ventilation and 3 ballasts running, I'm sure temps will reach low 70s. I have floor vents venting hot air upstairs passively, and the rest of the hot air in the room...

Getting some interesting readings from my thermometers after having installed my second 6" 440 CFM fan into my grow room. Dimensions of the room are 4x8x6 with two 600w cool tubes and two 440 CFM inline fans with an additional booster fan further down the line. I have a total of three...

Getting some interesting readings from my thermometers after having installed my second 6" 440 CFM fan into my grow room. Dimensions of the room are 4x8x6 with two 600w cool tubes and two 440 CFM inline fans with an additional booster fan further down the line. I have a total of three...

That's what I did but my number came out to be quite lower than I thought... I got like $116 for a 400 17/7 and two 600's 12/12 + fans. I'll have to check my calculations again.

Getting some interesting readings from my thermometers after having installed my second 6" 440 CFM fan into my grow room. Dimensions of the room are 4x8x6 with two 600w cool tubes and two 440 CFM inline fans with an additional booster fan further down the line. I have a total of three...

I've seen some around that people use to calculate their approximate energy costs. If someone can provide me a quick link that'd be great!

You want your intake closest to the ground where the most cool air is available as far as I understand. It looks like option A would be best. Alternatively, intake from the side would work just as well.

I apologize - I know this isn't simply a hobby to many. You can mount a fan and filter to the door but mounting it will be tricky. While 4" fans are lighter than 6" fans (obviously) they are still quite heavy, and along with a filter, which lacks appropriate anchors to secure to the fan (my...

You have to open the door, correct? If you exhaust or intake through the door you're going to have duct work that will have to move with the door. While this is not impossible, the thought of it is extremely foolish and the amount of sagging you would have would drastically reduce airflow...

If you're going to start cutting holes in your house... cut a hole in the wall, not the door. At least that way when you're done growing, you'll have a nice glory hole.

Yeah, I tried the duct clamp the problem was it was a tapered duct coupling so it would just slide off it due to the lack of any friction to hold it in place and the tapered end... went to Lowes and picked up a 6" BLACK!! pipe stove that was 12" long so that kinda stinks but one end of it was a...

Hey guys, got a quick question here regarding light leaks. I've got very minute amounts of light penetrating foam weatherstripping ever so slightly, to the point where you can see a glow through it from the inside of the room, but not to the point where rays of light are cast upon the floor of...

He said his budget was 350-400... those are 1200 dollar tents...

You're not going to find much for that many plants in that price range, let alone two. If you want quality and light proof, you'll probably spend that much on a single 4x4 tent. While you COULD grow 8-10 plants hypothetically in that space, it'd be incredibly crowded unless they're very small...