First vertical DWC problems

Pimpernickel

Well-Known Member
I've grown successfully with 8 gallon 25" spaced Undercurrent systems with hoods/scrog for sometime.

In my new room I have two 4 site 13 gallon UC systems with 40" spacing.
Leaf temps fluctuated between 76 and 85 degrees, they are generally at 77, the heater is oversized and by the time it cycles the temps get higher.
I'm using H&G nutrients. I ran week 5 with Top Booster twice since 818 could wrong longer and the buds appeared underdeveloped.
5 vertical 600W lights
1300ppm CO2 2 18" fans covering each set.
Blackwater and 818 Headband strains.
40-50% humidity except for the first three weeks at 20%ish, 2 of which were veg. I had to get a humidifier.

The only mistreatment the plants received was right before flip, the heater malfunctioned and the plants saw two days of 50-60 degree temperatures. This didn't appear to hurt them badly, perhaps a bit of slow growth after flip.
Growth overall was explosive, starting at about 15" in diameter and height ever increasing. They're currently all about 6'tall including bucket with one at 7', wide enough that a couple had to be tied back to keep a space between them with 40" centers. Buckets full of perfectly healthy roots. The buds however are very small. They also look extremely underdeveloped, almost as if I was at week 3 rather than 6. What type of problem could I be having where plant health appears fine, I have fantastic plant growth, yet these small, underdeveloped looking buds? The largest plant actually had the smallest, most underdeveloped buds, practically all pistil and no calyx.
 

pjd907

Active Member
I've grown successfully with 8 gallon 25" spaced Undercurrent systems with hoods/scrog for sometime.

In my new room I have two 4 site 13 gallon UC systems with 40" spacing.
Leaf temps fluctuated between 76 and 85 degrees, they are generally at 77, the heater is oversized and by the time it cycles the temps get higher.
I'm using H&G nutrients. I ran week 5 with Top Booster twice since 818 could wrong longer and the buds appeared underdeveloped.
5 vertical 600W lights
1300ppm CO2 2 18" fans covering each set.
Blackwater and 818 Headband strains.
40-50% humidity except for the first three weeks at 20%ish, 2 of which were veg. I had to get a humidifier.

The only mistreatment the plants received was right before flip, the heater malfunctioned and the plants saw two days of 50-60 degree temperatures. This didn't appear to hurt them badly, perhaps a bit of slow growth after flip.
Growth overall was explosive, starting at about 15" in diameter and height ever increasing. They're currently all about 6'tall including bucket with one at 7', wide enough that a couple had to be tied back to keep a space between them with 40" centers. Buckets full of perfectly healthy roots. The buds however are very small. They also look extremely underdeveloped, almost as if I was at week 3 rather than 6. What type of problem could I be having where plant health appears fine, I have fantastic plant growth, yet these small, underdeveloped looking buds? The largest plant actually had the smallest, most underdeveloped buds, practically all pistil and no calyx.
Im having the same issue bro. My plants get to about week 4 of flowering and the buds just seem to stop growing, ive been researching for weeks and cant find anything. I get all these lil popcorn buds that dont swell. I feel your pain
 

Pimpernickel

Well-Known Member
They took an extra two weeks to finish. I figured out that some of the lights were set to 300W instead of 600W not long after posting. Normally I'm excellent at not looking at the lights and someone else was supposed to have turned the ballasts up so I'd not noticed. I think this, along with the plants being to large and not getting a decent amount of light into the interior was part of it. One plant ended up being awesome, one okay, two had usable scrub, two were hash trash.

I'll give it another whirl.
 

UncleReemis

Well-Known Member
Be careful with dimmable ballasts and such. I guess it can ruin your bulbs if you dim a 600W bulb to a 300W setting. Other than that, I'm unsure. First guess would have to be light, but it seems you've got that figured out. xD
 
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