Started my First DWC Grow with LED

Hello Friends !

I am a new grower and just started setting up DWC for first time.

I want your opinions by looking at pictures if i am doing anything wrong please suggest me .

It's been 3 days since i put the seeds in rockwool cube. Now the plant has come up after 3 days still in germination stage.

I have started the LED light at minimum and 36 inches above them. is it correct ?

Do i need to add nutrient water to the reservoir or just plain PHed water is enough for now ? Please suggest me.

Most important thing for you right now is keeping that rockwool from getting way too soaked. The roots will completely stop growing

Keep the light high! They will burn super easy. Kinda pointless having them in RDWC when that small as you have to top feed until established and if you overwater them that small they may rot and roots won't go searching.

It's true. Seedlings are extremely delicate and should really be growing in soil or coco if an aero cloner isn't available so roots can get established for the netpot to house and allow to hang down in the dwc.

The main mistake people make with rdwc/dwc is not knowing that it's a system made exclusively for Aero rooted clones and people try to sprout new seeds in it. So if you wanna run seedlings, you gotta get them to the point of a rooted plant. Then it goes in

If you get that just right it will happen. Next run build or buy a decent aero cloner as above and put the most mature plants in you can. Go easy on water, those plugs may only need 10-20ml a day maybe less, depending on environment. Have you got a humidifier in there?

Mothers if you plan on keeping any for clones, will need their own dedicated setup and an Aero cloned will not do justice unless it was a huge 120 site with 20gal reservoir. Nah.
You gotta either build totes that are up higher than the res, that have 1/2" line going in to them and wrapping the inside perimeter with some spray heads poked in it. Drains just go back to the res.
Or just build a smaller RDWC system and use it to house your mums.

Turbogrow said:

Keep the light high! They will burn super easy. Kinda pointless having them in RDWC when that small as you have to top feed until established and if you overwater them that small they may rot and roots won't go searching.

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Yes il increase the height of light from them.

And i have planted Autoflowering seeds so i am not planning to make any clones out of it.

Just to be clear I meant use an aero cloner to get clones well rooted and established before transferring to RDWC

Turbogrow said:

If you get that just right it will happen. Next run build or buy a decent aero cloner as above and put the most mature plants in you can. Go easy on water, those plugs may only need 10-20ml a day maybe less, depending on environment. Have you got a humidifier in there?

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No i dont have a humidifier in room.

The humidity right now is around 69 in the room

Is it ok with that humidity for germination process ?

Turbogrow said:

Just to be clear I meant use an aero cloner to get clones well rooted and established before transferring to RDWC

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Yes sure mate next time il do in the aero cloner.
I am planning to buy on.

I have one more garden where i got all autoflower plants they are around 80 days old .
But they are in coco .

69 is OK, they kinda get used to what they get, they don't like rapid changes however. After reading other posts I realise you are on autos now. If you could plant 1 month before moving to RDWC I think that would be about right.

Friends , Do i need to give nuted water or just plain PHed water for this stage of seedling ??

theme19960 said:

Friends , Do i need to give nuted water or just plain PHed water for this stage of seedling ??

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Plain tap water will get them through the first week or so really.
Maybe mix up some 1/8 strength nutrient if you didnt "charge" the rockwool with any

Naturally, the seedlings first rounded off, nubby leaves, that line the seeds husk or "shell", called the cotelydons, have about a weeks worth of everything the seedling needs to get a good start in life and have a good chance at taking off.
Some people though, like Greengenes707 feed full strength to newly rooted clones from the get-go, all the way through.
Seedlings on the other hand, I'd reccomend about a 1/4 strength for the first week then 1/2 that nextweek. Full strength veg nutes after that til you flip to flower.

Airwalker16 said:

Most important thing for you right now is keeping that rockwool from getting way too soaked. The roots will completely stop growing

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I use a small plastic pippette from a science lab, squeeze it and suck the water out of the Rockwool, a turkey baster would work also. Small Rockwool cubes stay wet inside too long.

SnidleyBluntash said:

I use a small plastic pippette from a science lab, squeeze it and suck the water out of the Rockwool, a turkey baster would work also. Small Rockwool cubes stay wet inside too long.

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Yep, i agree with you there. They actually suck ass. Will never use rockwool again. Unless I ever go huge and commercial on tables.

But I did find a way to solve the issue, instead of using a small cube, I cut a piece that was long, a ‘rectangle’. And placed it upright like a tall skyscraper building. When the Rockwool is watered this way, the top gets quite dry and the bottom stays wet. When you plant a seed at the top it is perfect, lots of oxygen and air.
In 1 day the taproot was poking out of the bottom of a 4 inch long rectangle.

I think the water gets pulled down by its own interaction forces.

I found yet another way, just like above... Get a 4 or 6 inch cube and stand it so just one corner is touching the drain tray when you initially soak them. Odd must be the way they are layered internally but wayyyy more water comes out. I started weighing them also and writing on the label. Think a 6 inch block over 650 grams is too wet imo. When first soaked they are over 2000 grams!