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I'm in need of some advice desperately and i'll include a bunch of pictures to help diagnose my problems. Here's the scenario:
8k watts bare bulb vertical
RDWC system with a 4000gph pump with a feedback tee back into the res for extra aeration. 2x 12" waterfalls coming into the res from the drain lines, 1x 110 lpm air pump with 12 airstones spread around the 100 gallon res, and 1 x 110lpm with airlines and airstones running into each of the 7x 27 gallon buckets (each filled about 15gallons) in the system. Water chiller keeping temps at 68 in the res. Each 27 gallon tote has a hole cut in its lid for a net pot that is filled about halfway with hydroton.
Here's the situation, we had 7 well rooted clones coming out of an aerocloner, the plants were placed in the system together. The room is cooled by a 48k BTU central AC unit, it contains 8x bare bulb 1000w metal halides, sealed room, co2 gen, soleus 20 pint dehumidifier, and sentinal to control all cooling, dehumidifying and co2. Started the system with 185 gallons in the res, added lucas formula at 0-5-10 (grow-micro-bloom), added House and Garden root accel, multi zen and algen extract to reverse osmosis water. The first night we had a major problem, put the plants in the system around 3AM left the system running for 4 hours, woke up to a room in disaster mode, temperature of the room was 118 farenheit (we tested the AC the day before so we were very suprised), water temp in the res read 90+ farenheit, plants were falling over wilting. The concrete floor was actually warm to the touch and the AC was running but no cold air was coming out its ducts.
After this we started running just 1 light till we got our AC problems sorted out, turned out we needed a low ambient kit to run in winter temps. All this happened on the 6th, we got the water chiller running and working, fixed the AC and started running all lights again, this time conditions were optimal. Please note at this point we didnt flush, in the following weeks since the 6th, 5 out of the 7 transplanted clones have had browning roots that eventually broke of the stem (cloning was done without rockwool or other media). The remaining 2 clones roots seemed to be growing at an exponential rate, but the leaves still showed signs of deficiency. The pH also rose quickly on the 6th when the AC failed, it was corrected from 6.5 all the way back down to 5.8 in .2 increments daily. The now rootless clones were replaced with fresh cuts from a local club rooted in rockwool, dead roots were fished out of the buckets and the two plants that were not replaced had been growing very fast up to this point, but showed some weird deficiencies on the leaves. So Fox Farms Big Bloom was added at 1/3rd recommend dose, Earth Juice Microblast at 1/3rd recommended and Cal-Mag plus was added at 1tsp per gallon. At this point the res had a ton of white bubbles frothing through it, with some very small patches of brown bubbles. The roots on the surviving plants looked like they were growing fast well out of the net pots and into the water. The new clones seemed to be growing roots fast too, but all the leaves on all plants in the system still showed signs of deficiency and didnt look perfectly normal, twisting slightly, wilting and seeming frail and thin. The old surviving plants look like their roots might have some brownish residue on it, however bear in mind the color of the nutrient solution is also a deep brown. Here's some pictures of the plants:
A couple of pieces of info that may be useful:
The central AC keeps relative humidity in the room around 28-31% consistantly, AC kicks on when center plant (surrounded by 4 lights ) temp gets to 83 farenheit, the room is then cooled by AC until the thermometer by the center plant reads 78 then is let rise up back to 83 and the cycle repeats. Light cycle was 24/0 until two days ago when it was switched to 18/6. Out of desperation at a lack of improvement SM-90 was added to the res at an attempt to destroy any remaining living organisms. Not sure if I have root rot or not, not sure what to do next actually, pH at the moment is a rock solid 5.9, temps in res are 68 yet still these weird leaf deformities. Some of the leaves almost seem to disintegrate upon touch as if either burnt to the crisp by heat, messed up by pH flux, deficient in something or maybe getting too dry from a lack of humidity. PPM in the system @.5 conversion is about 950, raised from 800 after cal-mag was added. Definitely signs of burnt tips, but still not sure if too strong nutrients are my problem here. I'd really appreciate any input.
Lights are 53" away from the center of the plants, an 18" and 14" oscillating fan moves air through the room.
8k watts bare bulb vertical
RDWC system with a 4000gph pump with a feedback tee back into the res for extra aeration. 2x 12" waterfalls coming into the res from the drain lines, 1x 110 lpm air pump with 12 airstones spread around the 100 gallon res, and 1 x 110lpm with airlines and airstones running into each of the 7x 27 gallon buckets (each filled about 15gallons) in the system. Water chiller keeping temps at 68 in the res. Each 27 gallon tote has a hole cut in its lid for a net pot that is filled about halfway with hydroton.
Here's the situation, we had 7 well rooted clones coming out of an aerocloner, the plants were placed in the system together. The room is cooled by a 48k BTU central AC unit, it contains 8x bare bulb 1000w metal halides, sealed room, co2 gen, soleus 20 pint dehumidifier, and sentinal to control all cooling, dehumidifying and co2. Started the system with 185 gallons in the res, added lucas formula at 0-5-10 (grow-micro-bloom), added House and Garden root accel, multi zen and algen extract to reverse osmosis water. The first night we had a major problem, put the plants in the system around 3AM left the system running for 4 hours, woke up to a room in disaster mode, temperature of the room was 118 farenheit (we tested the AC the day before so we were very suprised), water temp in the res read 90+ farenheit, plants were falling over wilting. The concrete floor was actually warm to the touch and the AC was running but no cold air was coming out its ducts.
After this we started running just 1 light till we got our AC problems sorted out, turned out we needed a low ambient kit to run in winter temps. All this happened on the 6th, we got the water chiller running and working, fixed the AC and started running all lights again, this time conditions were optimal. Please note at this point we didnt flush, in the following weeks since the 6th, 5 out of the 7 transplanted clones have had browning roots that eventually broke of the stem (cloning was done without rockwool or other media). The remaining 2 clones roots seemed to be growing at an exponential rate, but the leaves still showed signs of deficiency. The pH also rose quickly on the 6th when the AC failed, it was corrected from 6.5 all the way back down to 5.8 in .2 increments daily. The now rootless clones were replaced with fresh cuts from a local club rooted in rockwool, dead roots were fished out of the buckets and the two plants that were not replaced had been growing very fast up to this point, but showed some weird deficiencies on the leaves. So Fox Farms Big Bloom was added at 1/3rd recommend dose, Earth Juice Microblast at 1/3rd recommended and Cal-Mag plus was added at 1tsp per gallon. At this point the res had a ton of white bubbles frothing through it, with some very small patches of brown bubbles. The roots on the surviving plants looked like they were growing fast well out of the net pots and into the water. The new clones seemed to be growing roots fast too, but all the leaves on all plants in the system still showed signs of deficiency and didnt look perfectly normal, twisting slightly, wilting and seeming frail and thin. The old surviving plants look like their roots might have some brownish residue on it, however bear in mind the color of the nutrient solution is also a deep brown. Here's some pictures of the plants:
A couple of pieces of info that may be useful:
The central AC keeps relative humidity in the room around 28-31% consistantly, AC kicks on when center plant (surrounded by 4 lights ) temp gets to 83 farenheit, the room is then cooled by AC until the thermometer by the center plant reads 78 then is let rise up back to 83 and the cycle repeats. Light cycle was 24/0 until two days ago when it was switched to 18/6. Out of desperation at a lack of improvement SM-90 was added to the res at an attempt to destroy any remaining living organisms. Not sure if I have root rot or not, not sure what to do next actually, pH at the moment is a rock solid 5.9, temps in res are 68 yet still these weird leaf deformities. Some of the leaves almost seem to disintegrate upon touch as if either burnt to the crisp by heat, messed up by pH flux, deficient in something or maybe getting too dry from a lack of humidity. PPM in the system @.5 conversion is about 950, raised from 800 after cal-mag was added. Definitely signs of burnt tips, but still not sure if too strong nutrients are my problem here. I'd really appreciate any input.
Lights are 53" away from the center of the plants, an 18" and 14" oscillating fan moves air through the room.
