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Some folks on site have gotten incredible results with almost overloading the root zone with air….

Do a search above for “Max O2 dwc” and find the thread with pics of a rootmass that looks like what you want…. It’s just extra air

LOL I'm doing my best! I'm running the biggest bubblers I can find, and the biggest air pump I could get my hands on. Its meant for like a 1000 gallon aquarium.
 
Ah, ok. I am doing DWC in 5 gallon buckets.

I wonder if the photoperiods I am growing now will get big enough to fill out the bucket like that. I've been looking at different trimming options, and I decided I'm just gonna top them like 3 or 4 times, and feed plenty of silicon so the branches are nice and thick.

Lots of factors and I know very little about dwc. I believe it can have to do with bubble size and how aggressive they are..


Stuff MOG has said about bubbles

It looks to me like your bubbles are too large and therefore also violent. The smaller the bubbles the better. If you look at the root that is still in the moist air, it has a bunch of fine lateral feeder roots that look like fuzz. These are the roots we strive to protect in the water from too much turbulence. The smaller the bubbles the more surface area to exchange oxygen to the water, it is from the water that the roots get the oxygen they need, not from bubbles touching the roots. I always had two stones on separate pumps in each bucket, one pump on a battery backup.

Changing the volume of air did not change the bubble size and that is what we are looking to do. You need better air stones.

ScreenHunter_272 Jul. 31 18.10.jpg
 
Lots of factors and I know very little about dwc. I believe it can have to do with bubble size and how aggressive they are..


Stuff MOG has said about bubbles

It looks to me like your bubbles are too large and therefore also violent. The smaller the bubbles the better. If you look at the root that is still in the moist air, it has a bunch of fine lateral feeder roots that look like fuzz. These are the roots we strive to protect in the water from too much turbulence. The smaller the bubbles the more surface area to exchange oxygen to the water, it is from the water that the roots get the oxygen they need, not from bubbles touching the roots. I always had two stones on separate pumps in each bucket, one pump on a battery backup.

Changing the volume of air did not change the bubble size and that is what we are looking to do. You need better air stones.

ScreenHunter_272 Jul. 31 18.10.jpg
I’m pretty sure derek420 ended up using those big flat air stones… tiny bubbles
 
Lots of factors and I know very little about dwc. I believe it can have to do with bubble size and how aggressive they are..


Stuff MOG has said about bubbles

It looks to me like your bubbles are too large and therefore also violent. The smaller the bubbles the better. If you look at the root that is still in the moist air, it has a bunch of fine lateral feeder roots that look like fuzz. These are the roots we strive to protect in the water from too much turbulence. The smaller the bubbles the more surface area to exchange oxygen to the water, it is from the water that the roots get the oxygen they need, not from bubbles touching the roots. I always had two stones on separate pumps in each bucket, one pump on a battery backup.

Changing the volume of air did not change the bubble size and that is what we are looking to do. You need better air stones.

ScreenHunter_272 Jul. 31 18.10.jpg

These are the stones I'm running

Amazon product

Honestly I think a big part of my issue is that I keep the water all the way to the bottom of the net cup. I think if I want crazy thick roots I need to keep the buckets at like 1/3rd full, and the air stone makes the moisture in the bucket that keeps the root mass healthy. Because when I did kratky outside last summer I also got insanely massive roots like that.
 
Lots of factors and I know very little about dwc. I believe it can have to do with bubble size and how aggressive they are..


Stuff MOG has said about bubbles

It looks to me like your bubbles are too large and therefore also violent. The smaller the bubbles the better. If you look at the root that is still in the moist air, it has a bunch of fine lateral feeder roots that look like fuzz. These are the roots we strive to protect in the water from too much turbulence. The smaller the bubbles the more surface area to exchange oxygen to the water, it is from the water that the roots get the oxygen they need, not from bubbles touching the roots. I always had two stones on separate pumps in each bucket, one pump on a battery backup.

Changing the volume of air did not change the bubble size and that is what we are looking to do. You need better air stones.

ScreenHunter_272 Jul. 31 18.10.jpg
IMG_1369.png
 
Some folks on site have gotten incredible results with almost overloading the root zone with air….

Do a search above for “Max O2 dwc” and find the thread with pics of a rootmass that looks like what you want…. It’s just extra air
Yes, air to the root-zone…. That‘s very important. It makes a HUGE difference. Can’t find any photos on it, but it’s like a frikkin BIG-PLANTS-Turbo!
 
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