A sad attempt with DWC - go Coco in the same buckets instead?

D350

Active Member
I got fed up with soil so I decided to go RDWC.
Made a 12 buckets system, 20l each, 250l main reservoir. (Heath Robinson system)
Did a lot of reading and stuff, so I got prepared:
Water temp 19C, Ph 5,7-5,8, Canna Aqua nutes, EC 1,0-1,1, RO water, big air pumps, stones everywhere, 8000l/h pump for water.

My first attempt was with Richie's tea.
I made 20l of tea (EWC, bacteria and stuff, what i could get, brew it, smelled like forrest).
Took healthy clones, put them in...died from root rot in 2 weeks...they just never took off.

Second attempt: went sterile(disinfected everything twice), added Chlorine every odd day, even sprayed them with previcur, added some in the res.
Died of slow death in 2 weeks. Root rot.

Third and current attempt:
Went and bought super healthy clones from the store, with super white roots.
Used Erythromycin at reccomended dose, used Chlorine every day up to 1ppm, used previcure fungicide...no luck.
Plants are slowly dying, roots are getting brown.
I think Chlorine escapes from the system too fast to be effective. After 16h I get 0ppm.

As a last resort I added Physan20 at 1ml per 10gallons in the system. I'm sure it wont help much, but I'll just wait a couple of days more...I wasted 3months already...burned all the cash and too much time.


Sooo...what to do?
Try the tea again?
Go coco in the same buckets? Should I drain to waste or recirculate in coco?
I guess my water pump is too big now for this.


I'm really sad, because I put too much money and time in making this system. Can I use it in a good way with something, that is not prone to root rot?


Any insight, help, suggestion is appreciated.

Thank you!!!
 

FrozenChozen

Well-Known Member
you're using too many chemicals to support clones.... all they need to thrive is water... try again and this time KEEP IT STUPID SIMPLE
 

D350

Active Member
you're using too many chemicals to support clones.... all they need to thrive is water... try again and this time KEEP IT STUPID SIMPLE
Maybe I was not clear, I'm not trying to clone. Clones are already made, with roots poking out of rockwool.
I'm trying to grow plants. Using only base nutes. Everything else is fighting root rot. Tried beneficials, sterile, more sterile...nothing works.
Maybe I could switch to coco in the same buckets...any idea?

Thank you
 

FrozenChozen

Well-Known Member
Maybe I was not clear, I'm not trying to clone. Clones are already made, with roots poking out of rockwool.
I'm trying to grow plants. Using only base nutes. Everything else is fighting root rot. Tried beneficials, sterile, more sterile...nothing works.
Maybe I could switch to coco in the same buckets...any idea?

Thank you
You were clear. USE LESS NUTRIENTS ON THE CLONES. BOTTOM LINE. You're killing them with kindness. root rot will spread between plants with shared reservoirs. STOP GIVING NUTRIENTS and wait for the clones to adjust, then slowly start the nutrients.
 

D350

Active Member
You were clear. USE LESS NUTRIENTS ON THE CLONES. BOTTOM LINE. You're killing them with kindness. root rot will spread between plants with shared reservoirs. STOP GIVING NUTRIENTS and wait for the clones to adjust, then slowly start the nutrients.
As my limited knowledge goes, I thought EC around 1,0 (500ppm) is acceptable with small plants. With larger I can go higher.
OK, I'll lower my EC. Any suggestion?

Thank you.
 

Aeroknow

Well-Known Member
As my limited knowledge goes, I thought EC around 1,0 (500ppm) is acceptable with small plants. With larger I can go higher.
OK, I'll lower my EC. Any suggestion?

Thank you.
.4-.5 EC for newly rooted clones always works for me;-)
 
I would use beneficial microbes instead of adding chlorine and trying to be sterile. Aquashield is supposed to be very good for preventing root rot.
 

D350

Active Member
thank you all for advice.
I'll try one more time with beneficials.
If that does not work, I'll just fill the buckets with coco...
 
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