Roots now growing in DWC

R

reallycoolguy

Active Member
So I had 80 clones in rockwool two weeks ago. They all were really wet and wouldnt dry out fast enough so someone on here suggested removing most of the rockwool.
So I did that and two days later I hat brown slime algae. I added H2O2 with no success and then beneficial tea with more success. The slime is gone but my roots just dont want to grow. They are dying pretty fast, about half is already gone. I dont know wtf to do.

My res temp is 71F
90L
With three air stones (about 12W power)
Water level is directly under my netpots.
PH gets adjusted automatically with a PH controller and a peristaltic pump. I really need your help guys because if I don't get this grow gowing I have no other option then to stop growing alltogether :(.
 
BobThe420Builder said:
Also did u get hydroguard and z7
Click to expand...
These products are hard to get in europe. I looked at all the spores and bacteria and substituted them with other products.
I am using GHE Flora duo series. I mix 50/50 Tap water with RO water so i get an EC of 0.3 and then I put in nutrients to get to 0.5 (they are small plants).
I got constant 24°C and 50-60% humidity.
 

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Those plants sure look sickly. An ec of .5 should be perfectly fine, maybe a little weak. I don't understand how you are maintaining the ph or how you are testing it. I have never tried Flora Duo but have used GH 3 part nutes and Flora Bloom extensively. I couldn't dial in Maxi Grow when many other people have success with it. The only thing I can think of is try the GH 3 part and use the tried and true Lucas Formula. It could just be a simple ph problem and a wonky ph meter. I always use ph drops because I haven't found a ph meter I can trust. With Lucas my ph is very stable and I rarely need to check it.
 
My PH gets adjusted by a pump that pumps dilluted ph- into the res as soon as the ph climbs to over 5.8. So I got a stable 5.8.
What is the lucas formula? Where can i find it?
 
reallycoolguy said:
My PH gets adjusted by a pump that pumps dilluted ph- into the res as soon as the ph climbs to over 5.8. So I got a stable 5.8.
What is the lucas formula? Where can i find it?
Click to expand...
have you calibrated your pH controller?
are you not home often to check and adjust pH? if you are, turn off the pH doser and do it manually until you get this sorted out
what do the roots look like?

flora duo aren't bad nutes. i've used them before. isn't it like 3 parts A / 1 part B for veg and vice versa for bloom??? it's been awhile since i used them.
 
The reason I keep going back to GH is for the stable PH. If your ph is really perfect then the plants are hating something else in the rez.
 
I guess there are no Flora Duo users to offer any tips. We have lots of growers with experience with GH 3 part or Lucas formula or Flora Bloom. If those plants ever get healthy it is going to be a crowded disaster. Any and all lower branches will be too crowded to make any decent buds. You must be planning to move them to individual buckets at some point. I would do it now and try different nute strengths in each bucket. You will be our Flora Duo guinea pig.
 
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