pcgrower274
- 12
- 3
Hey guys, think it's finally time to ask for help, I've trawled through forums and tried what I can think of but now luck.
Background: I have successfully grown some decent bud already, in a small PC case, custom made with purple COB LED and small carbon filter, I've done 3 grows till now and each one has been better than the other, no major issues, life was great!
BUT. I was low on room, the grow height is only 45cm, and LST and SCROG can only do so much, I was looking to try topping the plant too at an earlier stage, but haven't tried this yet for reasons below.
I decided to get a bigger PC case, Coolermaster cosmos II, it is much taller, almost 80cm, and wider, instead of 1, 1L grow (yes I litre!), I can fit 2x 2L pots. I built almost the same way, without a carbon filter just an exhaust instead, created negative pressure as I did with the first, only this time I did not use mylar, but a white expensive reflective sheet instead (I'm providing as much detail as possible here)
I did not use the same purple COB Led, instead, opted to create my own LED strips circuit with my own driver, using Bridgelux EB3 slim strips, which measured at 80w at full power, these are a white light. I added these to the side, and used a COB led at the top link:
My issue is, the plant droops/claws past 2 weeks of veg, and the growth is almost non existent. But it starts to grow fine when I move it to the old smaller PC case? Images of droopiness attached.
Here is what I've tried.
Strain - happened to all 3 plants, from seedsman and RQS, all of which recover inside the smaller PC case, my guess it's not the strain or seeds.
Airflow, added fans to the top, to replicate similar airflow to the smaller case, tried increasing and decreasing. don't think this is airflow related
Soil - growing in biobizz, used small amount of rhizotonic, PH always set to 6.1-6.5 for soil, run off is also correct PH, if it was PH, nutrient related, it would suffer slow growth and the droopiness/clawing in both environments?
Water - sites online say it is overwatering, but I water when the pot is light/dry, would also have symptoms in both environments if it was my watering style that is wrong?
Temperature / humidity, both almost identical in both grows, installed a wifi cam inside the box to monitor these, approx 65% during veg, bought a humidifier, and a heater for night time (during the day when it's warmest outside, 29-30c lights on, and 19-21 lights out, can fluctuate a little, but since both enviroments are outside in the garage, both have similar/identical temps/humidity
lights: originally had just the strips, added the 100w COB above to the top, total is 140w actual wattage, smaller (old) PC case only output 60w. I reduced to 60w exact to match the output to the working environment, no use there.
reflective sheeting - since they are different, I thought maybe there is too much light on the plant even though wattage is the same and lights are further away than the smaller PC grow enviroment, so I covered the sheeting with black duct tape, still no use. Could it somehow be the adhesive used behind the reflective sheeting causing something toxic in the air inside the grow?
exhaust- slowed the 4 inch exhaust fan down, maybe it was c02 deprivation if the fan is moving air out too quickly? but no, this did not help either :(
pots, using smart fabric pots, haven't used anything different before, these worked great for me as smaller grows less change of rootbound, I've checked my roots and they are not clumped together, on any of the plants that I've had recently
I honestly don't know what else to try anymore, it's driving me crazy, as soon as I move these unhealthy plants out of the larger environment, they will start to recover and "spring up" towards the light within matter of hours, and within 24 hours, visible growth starts occurring.
both run at 18/6 schedules.
any advice? is it perhaps the lights? anything?!
I don't have any pics of the plants when they've recovered, just had no reason to take any, but I have moved plants back in once recovered, I'll notice almost 0 growth instantly, and then 24-48 hours clawing will start again, and won't go away until I move then back into the other environment, I have tried starting seeds in both environments, but the one in the new bigger case, will start to claw within 1-2 weeks of growth
Background: I have successfully grown some decent bud already, in a small PC case, custom made with purple COB LED and small carbon filter, I've done 3 grows till now and each one has been better than the other, no major issues, life was great!
BUT. I was low on room, the grow height is only 45cm, and LST and SCROG can only do so much, I was looking to try topping the plant too at an earlier stage, but haven't tried this yet for reasons below.
I decided to get a bigger PC case, Coolermaster cosmos II, it is much taller, almost 80cm, and wider, instead of 1, 1L grow (yes I litre!), I can fit 2x 2L pots. I built almost the same way, without a carbon filter just an exhaust instead, created negative pressure as I did with the first, only this time I did not use mylar, but a white expensive reflective sheet instead (I'm providing as much detail as possible here)
I did not use the same purple COB Led, instead, opted to create my own LED strips circuit with my own driver, using Bridgelux EB3 slim strips, which measured at 80w at full power, these are a white light. I added these to the side, and used a COB led at the top link:
My issue is, the plant droops/claws past 2 weeks of veg, and the growth is almost non existent. But it starts to grow fine when I move it to the old smaller PC case? Images of droopiness attached.
Here is what I've tried.
Strain - happened to all 3 plants, from seedsman and RQS, all of which recover inside the smaller PC case, my guess it's not the strain or seeds.
Airflow, added fans to the top, to replicate similar airflow to the smaller case, tried increasing and decreasing. don't think this is airflow related
Soil - growing in biobizz, used small amount of rhizotonic, PH always set to 6.1-6.5 for soil, run off is also correct PH, if it was PH, nutrient related, it would suffer slow growth and the droopiness/clawing in both environments?
Water - sites online say it is overwatering, but I water when the pot is light/dry, would also have symptoms in both environments if it was my watering style that is wrong?
Temperature / humidity, both almost identical in both grows, installed a wifi cam inside the box to monitor these, approx 65% during veg, bought a humidifier, and a heater for night time (during the day when it's warmest outside, 29-30c lights on, and 19-21 lights out, can fluctuate a little, but since both enviroments are outside in the garage, both have similar/identical temps/humidity
lights: originally had just the strips, added the 100w COB above to the top, total is 140w actual wattage, smaller (old) PC case only output 60w. I reduced to 60w exact to match the output to the working environment, no use there.
reflective sheeting - since they are different, I thought maybe there is too much light on the plant even though wattage is the same and lights are further away than the smaller PC grow enviroment, so I covered the sheeting with black duct tape, still no use. Could it somehow be the adhesive used behind the reflective sheeting causing something toxic in the air inside the grow?
exhaust- slowed the 4 inch exhaust fan down, maybe it was c02 deprivation if the fan is moving air out too quickly? but no, this did not help either :(
pots, using smart fabric pots, haven't used anything different before, these worked great for me as smaller grows less change of rootbound, I've checked my roots and they are not clumped together, on any of the plants that I've had recently
I honestly don't know what else to try anymore, it's driving me crazy, as soon as I move these unhealthy plants out of the larger environment, they will start to recover and "spring up" towards the light within matter of hours, and within 24 hours, visible growth starts occurring.
both run at 18/6 schedules.
any advice? is it perhaps the lights? anything?!
I don't have any pics of the plants when they've recovered, just had no reason to take any, but I have moved plants back in once recovered, I'll notice almost 0 growth instantly, and then 24-48 hours clawing will start again, and won't go away until I move then back into the other environment, I have tried starting seeds in both environments, but the one in the new bigger case, will start to claw within 1-2 weeks of growth