Help with RDWC establishing roots

login · Dec 17, 2021

I guess I'm stuck with 10 gallons of useless UC roots now.

On another note current culture customer service sucks, I've emailed them twice this week with no replies on suggestions on what products to use form this problem.

login · Dec 17, 2021

Would drip clean be okay to run with bennies? That's what I used in coco to keep my drippers clean but I've never used any bennies ever in my grows.

login · Dec 21, 2021

Well it looks like the bennies defeated the bad guys and I'm back on track again.

login · Dec 27, 2021

What is this? I'm feeding at 300 ppm. Did the bennies eat up my iron or phosphorous?

Cashmeh · Dec 27, 2021

Nah they will actually turn the root rot into plant food. I forgot your nutrient line. If this is the first you have had this problem, how long has it been since your last res change or top off? If you have alot of additives, you can increase your ppms at this stage. You might just be running out of it early. I just suggest low ppms at the start to help eliminate things. 400 be ok. Depending on your capacity you should be adding nutrients once or twice a week.

As to that issue, id need to know what all you put in your res again. .cant find it lol. . mb

smokedareefer · Dec 28, 2021

login said:
What is this? I'm feeding at 300 ppm. Did the bennies eat up my iron or phosphorous?

Looks calcium def on that leaf. Whats the new growth look like? Foliar spray at lights out will give you the quickest response

That twisted leaf in the back ground, is there more that look like that?

login · Dec 28, 2021

I feed Jack's 5 12 26, 15 0 0, Epsom salt, and potassium silica. For additives kangaroots and z7 once a week.
Last res change was 5 days ago.

They seem to have the most problems after I do a res change I've noticed.

New growth is ugly and twisted.

smokedareefer · Dec 28, 2021

Calcium and phosphorous deficiency is my guess

A foiler of cal/mag and uping the phosphorous would be an idea

I feed gh 3part and have never done jacks and I'm old school running hps

TryingToGrow · Dec 29, 2021

Just looking at a few pictures of your plants I’d say pH is your issue, seems pretty obvious to me. Not under or overwatering or anything else.

sorry can’t read whole thread but just in case it helps, pretty sure you want pH ~5.8-~5.9

I would also just keep the roots in 1.2 ec at all times, 1 general purpose nute only. Maybe 1.3 if needed

Cashmeh · Dec 29, 2021

TryingToGrow said:
Just looking at a few pictures of your plants I’d say pH is your issue, seems pretty obvious to me. Not under or overwatering or anything else.

sorry can’t read whole thread but just in case it helps, pretty sure you want pH ~5.8-~5.9
View attachment 1201066

I would also just keep the roots in 1.2 ec at all times, 1 general purpose nute only. Maybe 1.3 if needed

What did he say his PH was? I never seen it lol. . I like 5.6 to 5.9. . but yea if hes over 6.0 its bad, but if hes over 5.5 hes fine. I can run an entire grow in RDWC at 5.5 with no issues. My brain tells me the lower the ph, the more acidic the water, the faster they can absorb. If I run 6.0 ph, there is something wrong with my system. I never want to see 6.0.

smokedareefer · Dec 29, 2021

TryingToGrow said:
Just looking at a few pictures of your plants I’d say pH is your issue, seems pretty obvious to me. Not under or overwatering or anything else.

sorry can’t read whole thread but just in case it helps, pretty sure you want pH ~5.8-~5.9
View attachment 1201066

I would also just keep the roots in 1.2 ec at all times, 1 general purpose nute only. Maybe 1.3 if needed

Op is using a auto doser its not a ph issue imo

Why exactly do you say it's a PH issue?

TryingToGrow · Dec 29, 2021

smokedareefer said:
Op is using a auto doser its not a ph issue imo

Why exactly do you say it's a PH issue?

interesting, has it been calibrated and how often does it need calibration? I’m not familiar with them

I have only ever seen plants look so twisted and terrible etc and etc, when pH is off. I said I can’t read whole thread but if my plants looked like a few of the pictures, I would calibrate my pH tools a couple times and be sure everything concerning pH was 100% on point before doing anything else. I personally have yet to see an unhealthy plant in a medium with good pH from what I can tell.

if there is a suspected root zone issue, pH is the first thing to check because if it’s not good, nothing can or will work properly.

Also, I now am using terrible city water that will rise after coming out of the tap. I have to let it sit for a week to chill out befor using because if not, if I pH down then water it will sit in the root zone and rise inside the pot, where I can’t get to it.

TryingToGrow · Dec 29, 2021

Cashmeh said:
What did he say his PH was? I never seen it lol. . I like 5.6 to 5.9. . but yea if hes over 6.0 its bad, but if hes over 5.5 hes fine. I can run an entire grow in RDWC at 5.5 with no issues. My brain tells me the lower the ph, the more acidic the water, the faster they can absorb. If I run 6.0 ph, there is something wrong with my system. I never want to see 6.0.

Not sure just skimmed and not much mention of pH (always concerning imo), but I think I saw some really poor suggestions. I personally cannot mess up a plant if the ph is good. I agree with your numbers pretty much.

login · Dec 30, 2021

PH doser was calibrated 2 weeks ago befoure that I was manually adding the ph down.

I recalibrate it a second time this morning and it's on point.

I went up to 1.0 EC because even though the plants are still small 1 foot plants there almost 2 months old vegging in dwc.
It's almost like theres somthing in my water causing slow and stunted growth.
In coco with 2 months veg I'd have 5 foot tall plants topped 5 or 6 times over.
I'm pretty disappointed in dwc right now after spending over 10k on this equipment.

DrStadanko · Dec 30, 2021

Cashmeh said:
I've never heard of anyone in rdwc running their airstones or waterpump on a timer. I'd actually say not running your stones 24/7 could cause issues, perhaps the ones your having. The splashing bubbles are what keeps your water and rockwool oxygenated imo.

I now can officially say I can place a tap rooted seedling into a completely submerged rockwool, with airstones running full blast making bubbles pop on top of my pebbles. The white spots is from that, it's salts that have dried on top of my pebbles. The only way they can get there is due to water making it to the top of my pebbles and drying lol. I actually made a video of how I so it. Now I'm Fallponics which is top feed, so this might be a huge factor in why I can and others cannot. I feel my water surface level, where the rockwool is, where the bulk of roots are, well I feel that water has a very high o2 level, when compared to most hydro systems. So I'm Fallponics with airstones... Heavy surface turning.

I put my pics in to show ya it works. I havnt really tried diagnosing your issues yet. I'd need more info honestly.

Gimme a bit to study your system and ponder.

So the first pics was when I had the rockwool at 1/3rd submerged,and it worked perfect, so two months later I tried it fully submerged and it works perfect to. I havnt top fed on my last two grows and they have been the best in terms of growth rates.

Mine are droopy because lights are about to go out in an hour.

this is the correct answer no timer on airstones they need to run 24/7 also keep your temps not to0 high til the plants get bigger

Cashmeh · Dec 30, 2021

I feel bad for ya bro, this is why I will only run live systems and build my own.

login · Dec 30, 2021

Air pumps runs 24/7. I am running a live now brotha with kangaroots and z7 enzymes

Thegreywizard · Dec 31, 2021

@login what app is that?

login · Dec 31, 2021

Thegreywizard said:
@login what app is that?

Smartbee

login · Jan 2, 2022

Okay so my ph is slowly drifting down again along with my EC going down what does that mean?

Help with RDWC establishing roots

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Help with RDWC establishing roots

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