Is my girl is dying??

[Budz81]

A little info first.
Dwc tub. Completely light proof. Water chilled to 66°. Commercial size air pump. Using great white, hydroguard, and flora trio nutes. Room temp between 75 and 84. Mars hydro reflector 48.

After 1 successful harvest, I can not seem to get my girl to grow. This current, and 1 right before this one, have ended with the same results. I am also adding cal mag.

Seed is blimburn sweetie auto. Planted in RW ph'd to 5.5 prior to planting. She is now 23 days old from sprout.


Pph is steady at 5.8 - 6.2.

Only thing that has not been optimal is the RH, which has maintained itself at 27-32°rh. Could this be the cause of my problems???

 

[oldcoot]

what do your roots look like ?
did you do a good flush and run just ph water for a couple days if your roots are ok.
How strong are you mixing your nutes ?
Did you scrub and disinfect your tub and everything in the water before you started new seed ?
As I have found weed is very hard to kill, lucky for me ha ha.
in a dwc results happen quickly ?
hope that helps.
oh and I like 50 to 60% during growth and around 40 to 50 during flower.
also are your led's about 18 Inches above your plants. that's 3 watt, 5 watt should be further.
just my opinion.
if water is 66, that's about perfect.
so I see no need for hydroguard but ...that's me.
to cold for bacteria or so I hear.

 

[Budz81]

I did clean and scrub with 29% peroxide, in between grows. Pretty sure my lights are 5w, and are 2 - 2.5 ft away. Ppm are around 350. I also hear that lower temps the bennies will not thrive, but i i figure that they cant hurt. There has been little to no root growth, but the roots are not dead either. Just not growing.

 

[derek420colorado]

@Waira should look, but the short answer unfortunately is yes. I would assume something wrong with the roots, can you take a pic of the roots?

 

[oldcoot]

You using rapid rooters and rototon ?
Sounds like everything is spot on.
Roots are nice and white, no brown or slime on them.
Shouldnt smell bad either.

 

[Budz81]

Im using rockwool and hydroton. Should i be using rapid rooters instead? The roots started off white then turned tannish. No slime or goo, or funny smells. Only slight smell is from the great white.

 

[oldcoot]

No ive just never used rockwool.
Others will have to chime in on that .
When you flushed, did you drown the rockwool and rototon with a gallon or two of ph water and then change tub water.

 

[oldcoot]

If it is the start of root rot. You can flush again.
If you did that then they should show signs of recovery in about 2 days in dwc.

 

[derek420colorado]

I am stumped, I don't know everything you have said sounds correct. I am sure as soon as @Waira sees this he will whop us all in our heads with the knowledge

 

[Waira]

Budz- something has f'ed the roots, so they stopped taking up nute's- .... the plant is so deep in the hole now, it's hard to say symptom-wise, what started first,... I can't see what went wrong, though I'm not a hydro guy, so I'll ask a mate to pop in and see what he thinks.... looks like she had a good start-? Them hit a wall!,...if your pH has been that stable, and nute's haven't gone bad, or mis-dosed--
:smoking: @Grim Reefer, please have a look,....