DWC roots not growing

GanjuhDubz

Well-Known Member
I once used a water farm dwc bucket with drip ring..the drip ring came in handy for extra aeration and watering the roots before they grew down into water.
 

Wastei

Well-Known Member
GG#4 sprouted in rockwool then placed into DWC 2 weeks ago but no roots out the bottom.
Ph- 5.8-6.0
Ppm- 350
Res temp- 73f
Tent temp- 75f
Room temp- 68f
Envy part A & B nutrients
TS-1000 @ 20 inches away
Water level is right at the bottom of the net
This is the wrong way to optimally start DWC IMO. You should not run water level just under the netpot. This will cause overwatering by creating a anaerobic environment with low DO.

At this point I haven't even introduced the plant to the system. You want to create good coverage for roots going through the netpot before introducing it to a lot of moisture and aeration. This is my roots after 5 days after transplant of seedling. IMG_20201031_020640064.jpg
Still just hand watering. Start with one time a day and increase to 2 times a day with 12h in between waterings.
 
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Vain420s

New Member
This is the wrong way to optimally start DWC IMO. You should not run water level just under the netpot. This will cause overwatering by creating a anaerobic environment with low DO.

At this point I haven't even introduced the plant to the system. You want to create good coverage for roots going through the netpot before introducing it to a lot of moisture and aeration. This is my roots after 5 days after transplant of seedling. View attachment 4729962
Still just hand watering. Start with one time a day and increase to 2 times a day with 12h in between waterings.
Okay just lowered the water to about 2in under the net and hand watered it. Do you think my water temp is too warm? I've read online where it says it should be around 65-70f.
 

Wastei

Well-Known Member
Okay just lowered the water to about 2in under the net and hand watered it. Do you think my water temp is too warm? I've read online where it says it should be around 65-70f.
That's fine. Especially if you run things sterile. My rez temp goes up to 84F without any problems.
 

myke

Well-Known Member
This is the wrong way to optimally start DWC IMO. You should not run water level just under the netpot. This will cause overwatering by creating a anaerobic environment with low DO.

At this point I haven't even introduced the plant to the system. You want to create good coverage for roots going through the netpot before introducing it to a lot of moisture and aeration. This is my roots after 5 days after transplant of seedling. View attachment 4729962
Still just hand watering. Start with one time a day and increase to 2 times a day with 12h in between waterings.
Im the other way,drop in system water level right at bottom air bubbles splash the first layer pebbles.Roots in 4-6 days.Hydro is hydro as long as theirs water.I use to run top feed with 1/4" hoses but thats long gone.Bigger hose now just run into the bucket hitting the net pot.
 

Wastei

Well-Known Member
Im the other way,drop in system water level right at bottom air bubbles splash the first layer pebbles.Roots in 4-6 days.Hydro is hydro as long as theirs water.I use to run top feed with 1/4" hoses but thats long gone.Bigger hose now just run into the bucket hitting the net pot.
People have success either way. I just think it's easier to not overwater when you starting out seeds in hydro. It's all about personal preference at the end of the day.

With clones it's practically impossible to overwater with clay pebbles. I start clones straight into the system.
 
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Larry3215

Well-Known Member
This will cause overwatering by creating a anaerobic environment with low DO.
Im sorry, but you are very confused or misinformed about what "anaerobic" means, plus, its impossible to "over water" in hydro as long as there is even remotely adequate aeration.

More specifically, in his situation, the roots in the net pot will have very close to 100% DO at all times, and there is zero chance of over watering or anaerobic bacteria forming.

If his roots are not growing, something else is going on. If anything, the bubbling may be insufficient to keep the hydroton wet enough - which is why others have suggested hand watering for a while. All of which is just the opposite of what you are saying.
 

Wastei

Well-Known Member
Im sorry, but you are very confused or misinformed about what "anaerobic" means, plus, its impossible to "over water" in hydro as long as there is even remotely adequate aeration.

More specifically, in his situation, the roots in the net pot will have very close to 100% DO at all times, and there is zero chance of over watering or anaerobic bacteria forming.

If his roots are not growing, something else is going on. If anything, the bubbling may be insufficient to keep the hydroton wet enough - which is why others have suggested hand watering for a while. All of which is just the opposite of what you are saying.
Anaerobic refers to "without air". You have to read my previous post. While it's practically impossible to overwater with clones without any rockwool core or coco jiffy pucks core etc.
It's a common problem with seedling starting directly in DWC and clones with rockwool core.

That's why I personally don't recommend people saturating their medium by running high water level starting seeds in hydro.
Wilt of is to much of a concern IMO. High water levels is not a problem at all running clones in straight hydroton.
 
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Aero Grow

Member
Looks like it's just taking it's time. If you keep an air stone going and leave the water line just under (not touching) the bottom of the net pot the bubbles will water the lower roots and eventually they well drop down into the water
 

firsttimeARE

Well-Known Member
Gotta top feed. I just take a cup and scoop from the res and pour over. The rockwool is going to hold a lot of water to the point it suffocates the roots so try to avoid pouring directly where the plants stem is.

Water level an inch below netcup isnt going to cause an anaerobic environment. Rockwool will though.
 
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