QuindariousGooch
- 72
- 33
Alright so idk what in the world is going on.
Its been a week and still little to no roots out of the rockwool at all.
They are beginning to droop, and continuing to twist. Purple stems, very little upper growth as well. The only thing I noticed was the 2 small aqua fans were blowing on the plants, maybe making them droopy? However the fans have been off for 12hrs and stilll no improvement To the droop
I can for the first time today, officially see some roots just starting to pop out of the bottom of the 1st netpot.
I’m really hoping in the next 24 to48 hours they start to explode....
Then again... I thought that was going to happen a few days ago.
I don’t honestly know what’s going wrong here.
Water/nutrient solution is still good at
64F
250ppm
5.6ph
Room climate holds a steady 40-50RH now at 75F
Light is 42” away at 25% intensity
I agree but I feel its because of environment. Like a cold rootzone in soil...they just don't drink well and that can leave the rockwool wet and plant looking over watered. If you look at his VPD the KPA is suited to that of a mature plant in flower. So essentially water stress just as you would see in a soil grow.I still think its the rockwool getting too wet because its not positioned correctly in proper netpots.
I agree but I feel its because of environment. Like a cold rootzone in soil...they just don't drink well and that can leave the rockwool wet and plant looking over watered. If you look at his VPD the KPA is suited to that of a mature plant in flower. So essentially water stress just as you would see in a soil grow.
I agree about the environment too, its really both these issues together that are causing major harm. Its kind of like being outside in wet clothes in cold weather, fixing just one of those issues would offer a huge improvement but fixing both would be ideal.@FourthCity I agree the cube placement is not at all ideal and contributing. Should be 1-2" of hydroton under the cube.
IMO they are cold and its environment. As I said before I dont agree with low res temp like 64f. Get the res temps up to 70-74f reduce the light as much as possible until they recover, raise the air temps to 80 and up the humidity to 65%.
Just my thoughts fwiw.
Because the rockwool will stay fully saturated.the light is 42” away and on 25%
The temp in the room averages over 75
Humidity is holding pretty steady over 50% now as well.
I do think the root zone may be too cold, but only because they are so small still. However it’s never been a problem before...
As far as netpot placement.
The rockwool cubes are essentially floating 2-3” above the bubbling water line. What is wrong with this exactly ?
The water temp is 64f but the air above and inside the netpot is not.
I have had clones in Rockwool that got left on a counter for 1 to 2 weeks and the plant still didn't look bad. They do look a little overwatered but I don't do DWC so I was hesitant to say anything but along with the res temperature I think it makes senseI still think its the rockwool getting too wet because its not positioned correctly in proper netpots.
IMO your ppm/ec may be too low. Try top-feeding with 500-600 ppm and see if they start to open up and stems start greening. I've seen heat and low humidity shut them down like this too but you have that dialed in. I would be interested to hear what happens if you try the top-feeding to "wake them up". If that works increase the reservoir. You might even push the ppm's on 1 plant to see if more is better in your system.
For reference on using higher ppm...
We pop seeds and start clones in 1250ppm (500 scale) in rockwool. We run veg and moms on the same water. Our best results on popping seeds was 1000 to 1300 range...We soak the block in it initially, place the dry seed into and A-OK and put that into the 1250ppm soaked block. Then we water 1x daily with 1250ppm. No humidity dome for seeds and we put them in the same light the moms are getting. Used to be HID and HPS but now we are LED in clone and veg. The seeds will adapt to whatever environment they pop into. The key is keeping them watered. They can take all the light you can give them if they have the transpiration rate to handle it.
Before anyone calls bullshit on the above process I encourage you to try it. I only mentioned it to give an opening to the idea that higher ppm than the charts say can produce better results. I realize I'm a rockwool grower and DWC is known to be different...but what if it's not so different? What if higher ppm's are better in this case? I'm not saying this is the answer rather give it a try/test.
For reference we run 1300-1400 clones every 2 weeks and 20-50 seeds (or 1-2 cultivars) every 4-6 weeks. All clones & seeds are run at a minimum of 1250ppm right out of the gate and continue through the veg cycle. I won't even mention what ppm we run in flower but it's "a bit" higher than 1250ppm. I used to get great results in coco pearlite at 600-1000 max and used to be skeptical about higher numbers so I understand growers who might push back on this methodology. I welcome debate if it is based on data and testing. Opinions are fun to listen to but I have learned to test all changes vs immediately implementing because it seems to make sense. Free advise is worth what you pay and should always be vigorously vetted based on the downside risk. That's why I suggested the top feed vs bumping the whole rez up. See what happens on 1 plant. If it works or doesn't you have learned something.
Iron sharpens Iron... Let me know if you try it and if so I would love to hear your results.
Cheers,
Q
I still think its the rockwool getting too wet because its not positioned correctly in proper netpots.
The cuttings were potted up on Friday, it will take a couple of days for the roots to get going again.
Should they really be dropping and twisting like this while rooting ?
I feel like normally the growth is just slowed while rooting, but nothing ever really dies or looks this terrible
Would I be better to take my own cutting and root them in with a collar in an areo cloner ?
My issue is less about how far away the rockwool is and more about the lack of hydroton for drainage underneath it. Water should only be absorbed into the rockwool through the hydroton not sprayed directly on it, the hydroton will naturally regulate the moisture for you. I'm promise I get no enjoyment out of repeating myself I only keep saying it because I think it will really help.Do you really think the rockwool sitting 2-3” directly above the bubbling water line is causing issues ?
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