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Yes, the routing of the ventilation you described is correct. I went with 8" fan thinking I would rather have more than I need and dial it down. Plus I got it cheap. So I guess a fan controller is next on the shopping list. Or maybe an inlet to the open room with a damper for a quick, temporary...

So I googled this question but didn't come up with an answer specific to my situation. I have two tents, a 4'x2'x5' I plan on using for veg and a 5'x5'x7' I'm going to use for flower. I have an 8" hurricane fan rated at 735 cfm that I plan on using to vent both tents through their respective...

Not sure if this helps your situation, but I'm using one of the tent vents as a passive intake for ventilation. I used the box from my water cooler to create a light trap so I didn't have to monitor the time and make sure I closed the flap during the dark period. I flattened the box a bit to...

More pics. Turns out the water sitting in the reservoir was pretty high, close to 7, and even when adding water at 5.8, the runoff came out at around 6.3. I always monitored runoff TDS, never really ph. Lesson learned. This plant overall is noticeably lighter green then the other two seedlings...

100% perlite hempy, feeding with Maxi series by GH, GH calmag, and Botanicare silica blast at half the recommended dosage, with Hydroguard at full recommended dosage. TDS at about 450 ppm, I think on that particular plant, the runoff comes out about 50 points higher. Fed every other day. Should...

The only reason I'm saying confident instead of positive is because you bring it up as the most likely cause. I check the solution with a meter and confirm it with a liquid test. I have been wrong before though so I will double check when I get home, just weird that it's the only plant showing...

I have been giving it half strength nutes, including calmag. Should I up the calmag to full strength? I'm fairly confident ph is there, I use the same nute solution on other plants, but I'll check when I get home.

Well, ppm is only about 450, and it's the biggest plant of the three seedlings, yet the only one with issues. A lighter green than the others as well. What type of deficiency are you thinking?

As the title states, I would just like to confirm what I believe is a phosphorous deficiency before I proceed. Strain is Nirvana's Master Kush. About 4 weeks old. I'm ruling out ph problems as its sisters (hopefully) receive the very same nutrient solution. Am I correct in assuming this? First...

Ok, in regards to the 1000w, are there certain ballasts that are clearly better than others? In regards to longevity, heat, what have you?

I'm looking to get a 5x5 tent, and am curious on opinions for lighting options. Would a 600w on a light mover with supplemental T5's horizontal under the canopy level be comparable to a 1000w on a light mover? During the summer heat would be an issue. The room will have an AC, but I would be...

Ya, hempy buckets. Friday is the soonest I can do it, but it will be done Friday for sure. Just wanted to make sure they would be good for that long. I have also heard it's beneficial to keep the plants in darkness for the last 72 hours or so before harvest, any truth to that?

All I have to take pictures is my cell phone, so the magnification won't be enough. Here's what I got.

First time grower, my Bubba Kush plant is showing some trichomes with a hint of amber. Being my first time, it kind of caught me off guard, and I only started to flush yesterday. I would like to get a good flush before I chop, and due to my work schedule will not be able to harvest until Friday...

Cool, I appreciate everyone's responses.

So just start flushing? First grow, so I'm just trying to figure everything out

Hempy in 4:1 perlite:vermiculite, using botanicare pure blend pro bloom and hydroguard

I have a pre 98 Bubba kush that is in its 7th week of flower. The leaves are turning brown and shriveling up. It is affecting the fan leaves primarily. Any ideas what it could be? Hempy bucket, 4:1 perlite:vermiculite, using botanicare pure blend pro bloom, along with hydroguard. I am also...