Douglasgrow
Member
Hello fellow growers
This is my second grow in deep water culture.
I am growing 3 “707 headband” and 3 “the new” both from humboldt seed organization.
All 6 seedlings were started in rockwool cubes 8 days ago.
After their first set of serrated leaves began forming, I moved them into my RDWC. My system has a drip ring that keeps the 6” net pots of hydroton saturated. I have a 1750GPH pump that supplies all 6 buckets with air (2 air stones in each bucket).
I filled the system with 880PPM solution containing:
Starting with R/O water
Mills Basis A
Mills Basis B
Mills Vitalize
Mills Start R
Botanicare Cal-Mag
Botanicare Silica Blast
Hygrozyme
SNS 209
Great white mycorrhiza
I check on the plants many times a day and the conditions are always pretty similar:
Air Temp: 77-80
Relative Humidity: 40-70
Air Speed: slight movement of leaves
Water Temp: 70
pH: 5.6-6.0
PPM: rose from 880-1000 over a week
(I have added R/O water to bring it down to 620PPM)
Water level: hasn’t changed yet
[CO2]: 800PPM
PPFD: 250 μmol/(m^2 x s)
The “707 headband” seedlings are looking better than “the new” in my opinion. 2 of the “707 headband” are showing slight burning in the tips of their serrations, one of them is looking pretty solid all around. 2 of “the new” however, are super droopy, no sings of burn though.
I turned off my top feed because I figured the plants were over watered (rockwool cubes were wet to the touch). I did this yesterday and they’re still droopy and tip burn is spreading slightly.
Any thoughts or opinions would be great, it took a long time for me to get my hands on these genetics and I don’t want to loose them.
Thanks everyone!
“707 headband”



“The New”



This is my second grow in deep water culture.
I am growing 3 “707 headband” and 3 “the new” both from humboldt seed organization.
All 6 seedlings were started in rockwool cubes 8 days ago.
After their first set of serrated leaves began forming, I moved them into my RDWC. My system has a drip ring that keeps the 6” net pots of hydroton saturated. I have a 1750GPH pump that supplies all 6 buckets with air (2 air stones in each bucket).
I filled the system with 880PPM solution containing:
Starting with R/O water
Mills Basis A
Mills Basis B
Mills Vitalize
Mills Start R
Botanicare Cal-Mag
Botanicare Silica Blast
Hygrozyme
SNS 209
Great white mycorrhiza
I check on the plants many times a day and the conditions are always pretty similar:
Air Temp: 77-80
Relative Humidity: 40-70
Air Speed: slight movement of leaves
Water Temp: 70
pH: 5.6-6.0
PPM: rose from 880-1000 over a week
(I have added R/O water to bring it down to 620PPM)
Water level: hasn’t changed yet
[CO2]: 800PPM
PPFD: 250 μmol/(m^2 x s)
The “707 headband” seedlings are looking better than “the new” in my opinion. 2 of the “707 headband” are showing slight burning in the tips of their serrations, one of them is looking pretty solid all around. 2 of “the new” however, are super droopy, no sings of burn though.
I turned off my top feed because I figured the plants were over watered (rockwool cubes were wet to the touch). I did this yesterday and they’re still droopy and tip burn is spreading slightly.
Any thoughts or opinions would be great, it took a long time for me to get my hands on these genetics and I don’t want to loose them.
Thanks everyone!
“707 headband”



“The New”


