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How did you end up spacing? I am building with a 28X8 foot room, 9 foot ceilings. Trying to figure out what I can fit in there, and will need ac wise.

Recalibrated PH meter was out reading .2 or .3 lower than it should have been!! Seems like bluelab meters need to be recalibrated every day! Put in a low ppm at 6.8 and they are looking much better!

This is in soil by the way. Do not have red stems, mostly green stems with a bit of purple.

On spring water with about 100ppm, Have been feeding calmag about 2.5 ml / gallon. PH of feed is about 6.4-6.5. Runoff is coming out 6.1-6.2.

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Hey everyone. Everything here on point in regards to ppm and ph, are at about day 34 of flower. Sitting around 1100-1400 PPM. Following GH 3 Part expert program almost to a T. I am leaning towards phospohorus but wouldn't mind a few other opinions!! Only the leafs/buds that are getting the most...

How much did this one stretch? I'm about to pop a 10 pack!! Working with 7 foot ceilings in a stadium grow... Can't wait!

Agreed on that being nitrogen toxicity! I have a bit of that happening right now myself too..

What do you think it is?

Agreed! Hortilux 940 conversion bulbs are what I use for vertical grow! WAY better than single ended HPS in my opinion. I'd like to try gavitas but I don't have ceiling space.

Yup I would agree about the cocotek being garbage, I had deficiencies showing up than I've ever seen before. and as soon as I switched back to gh 3 part everything straightened out. I'm on spring water with about ec of .2 - .3. Maybe cocotek would work fine with RO. Have a room on day 9 of...

How long does it normally take for them to start looking funny when they are moved into the room? How long have you been having this issue for?

Do you think it's affecting new plants coming into your room as well? or just the effected ones? Have they grown out of it at all?

Any update on what the test results were?

do you do multiple daily feedings once you are in flower? or keep wet once it is in flower?

I've used GH 3 part for years and have done some trial runs with coco but I treated it like soil and let dry before watering again, had growth and results that were very similar to dirt. Hoping that getting on the auto feed program will boost growth and results. But am in the middle of making...

For real?! In the last few days I've seriously had the worst looking plants I've had in years. Driving myself crazy for the last few days thinking about it. And I just switched to GH COCOTEK about 10 days ago from GH 3 part 2micro, 3grow, 1bloom for my veg formula around 500-1000 ppm. Had a...

Hey all! I am making the transition for growing in promix to using canna coco. I've done a fair amount of researching and do have some experience with coco but still have a few questions. Assuming multiple daily feedings and checking runoff to confirm ph and ec levels are where they should be...

Right now I am using and refilling multiple 50 gallon nutrient reservoirs on a daily basis. I am investing in some larger ones so I am able to save time and only have to refill them every 3-4 days. Right now I have tanks that I am able to easily scrub and clean with a bit of h202 and a brush...

I run a fully sealed room as well. What are your nighttime c02 levels? Do you notice they have a relationship with daytime co2 levels or if yours always fall down? My nighttime c02 ranges from 500-800. How come I never never read or hear about actual oxygen levels in grow rooms? Do you know...