DWC, Transplanting Teens, & PPM?

ChonBoi

Member
Hello and thank you for taking the time to read this.

BACKGROUND OF MY SITUATION.
I have grown indoor with soil a few times years ago and this is my first hydroponics grow. My investor got excited when he saw we were a few days from testing a 16 5 Gal DWC system. He decided on his own to buy some "Lemon OG" teens in 1 inch rock wool that was put in a solo cup with dirt. He watered them for a day and a half as I completed our set up. I went to the local hydroponics store and spoke with someone who claims to have done DWC a few times. He told me to gently remove dirt from the roots and transplant them into 6x6x4 rock wool cube and wedge it in the net pot. I did so and was top feeding with 6PH 650PPM GH nuits and H2O2 (there was already white powder fungus on the stems of half the plants) for 2 days then RO water the 3rd day. Majority of the 16 plants weren't looking so good even though the fungus looked to be fading so I spent the day researching. Coming to the conclusion the big block of rock wool was my problem I transplanted them again. Only one plant had noticeable root growth when I broke down the rock wool. I put the 1 inch rock wool cube in the net pot and gently tried to pull some of the roots through the bottom and filled it with hydro stones. I have been feeding them the same nuit mixture and am approaching day 3 after the most recent transplant. Most seem to be doing fine but some are looking even more unhappy with green-yellow droopy leaves.

The room is high 70's during the day Mid to high 60's at night with humidity between 35-40%. I also have been misting them with RO water twice a day.
Bucket water is 65 dropping a couple during night 6.1 PH 950PPM PPM week 3

MY QUESTIONS ARE.
Judging by my situation is there anything I should have done or be doing differently?
Is it to early after the transplant/fungus infection to tell if there is anything else wrong?
Is 950 ppm to high for a newly transplanted teen (about 18-24 inches) to be getting splashed on from underneath?

This is the chart I am using which I think is a little high but what the hell do I know.
900 PPM for week 2
1200 PPM for week 3
1500 PPM week 4
1800 PPM week 5+
Flush
1000 PPM week1
1300 PPM week 2
1600 PPM week 3
1900 PPM week 4

Any input is greatly appreciated!
 

Jypsy Dog

Well-Known Member
ALWAYS start @ half or less strength. When I take a plant from soil to Hydro, I wash the roots and plant off in a bucket of pH water. Put some hydrotone in the pot. Roots on top of that single layer. Top off the net cup with more Hydrotone. Put in my bucket and fill 1/2" up into the net pot. Let the roots run down and in on there own. I bring my PPM up slow and let the plant tell me how it likes it. I never have top fed to start a DWC. If your pH is drifting down.. you have an issue.
 

ChonBoi

Member
Thank you for you quick reply and link Jypsy!
Around what ppm do you start with when first transplanting? I'm using is 2/3 or lower strength right now. In that link it says TDS/EC: 750/1.5 is that about 1050 ppm?

So the splashing from below is enough or do you have the water level on the net pot?
 
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Jypsy Dog

Well-Known Member
I don't bother with PPM that early. I just use Cal/Mag and Maxibloom at 2g to gallon. Full dose is 7g. I grow Lucas Formula. My Net Pots are in the solution. I over fill to get them wet. Lots! of bubbles. Once the They taste the solution, they move pretty fast. Just let them drink it down to level. I start to get serious about PPM once they settle in to level.
 

ChonBoi

Member
Thanks for the info Jypsy! I am going to raise up the level to let them drink it down on there own like you suggested.

How long have you been doing DWC?
 

Jypsy Dog

Well-Known Member
Thanks for the info Jypsy! I am going to raise up the level to let them drink it down on there own like you suggested.

How long have you been doing DWC?
15 years! I like Ebb and flow also. 3 gallon fabric with 70/30 Coco mix. That's an easy way to grow some big girls!!! Good Luck with the rest of your grow.
 
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