Help with seedlings issue

Hey everyone not sure what's happening here. This is my first time ever using LED. But the seedlings started out great happy as can be and I've been keeping them moist.

Woke this morning to find it like this?

Light is 18" away. Temp is 75 and humidity average 55 to 60... Dome is off.
 

Attachments

jdog127

Well-Known Member
My best guess is you are over watering even keeping it moist 247 can make it waterlogged. Let it dry out a little bit. But not completely. Are you feeding at any nutes. Or just water
And exactly what LED are you using. You may need to put it closer.
 
My best guess is you are over watering even keeping it moist 247 can make it waterlogged. Let it dry out a little bit. But not completely. Are you feeding at any nutes. Or just water
And exactly what LED are you using. You may need to put it closer.

First thank you so much.

It's 900W LED

Not nutes just P.H water and ok don't spray every day may be over watering?
 

jdog127

Well-Known Member
Yeah my best guess is it is being water logged so hold off on the water. And move the light a little closer till she perks back up.
 
If your trying to feed them this early,that's a problem. LED this early can be a problem...
What's your plan/style of grow are you going for???

The cubes have only been soaked in balanced PH water. I have a 4 bucket RDWC setup in the tent. Right now the seedlings are under 4 T5 lights
 

Sdh777

Well-Known Member
It’s still so early in the grow cycle, so I’d just toss any stressed seedlings and replace them.

I also use Rockwool & T5’s to start. I always keep some water, but not much in the bottom tray and leave the dome on for 7-10 days. I don’t poor water directly on the rockwool or spray the seedlings until they leave the dome. I just poor about 3-4oz of pH water in the tray bottom, let the RW cubes soak it up throughout the day until the tray bottom is nearly dry, then repeat...usually once, maybe twice a day. You want the RW cubes just moist, never soaked and never completely dry either. I use only one set of T5’s to start...the T5 dimensions are 23”x 23” until they’re a few weeks old. And if the seedlings quickly stretch, the light’s too far away. I then move them to a 6” mesh pot full of hydroton with the top of the rockwool about 1-1/2” from the top of the mesh pot, throw them in an ebb & flow system for a month, auto-watering 3x per 24 hours for about 15 minutes each time...then I switch to an RDWC & 4 x 1000w LED’s at 4-6 weeks...

The above method should provide complete uniformity to your entire batch of seedlings & they should all look about the same unless your mixing strains.

Here’s a pic of my girls I just switched over to my tent with RDWC + LED lights last week. They’re now about 6 weeks old and exploding!

Good luck!
 

Attachments

sykeayou

Member
It’s still so early in the grow cycle, so I’d just toss any stressed seedlings and replace them.

I also use Rockwool & T5’s to start. I always keep some water, but not much in the bottom tray and leave the dome on for 7-10 days. I don’t poor water directly on the rockwool or spray the seedlings until they leave the dome. I just poor about 3-4oz of pH water in the tray bottom, let the RW cubes soak it up throughout the day until the tray bottom is nearly dry, then repeat...usually once, maybe twice a day. You want the RW cubes just moist, never soaked and never completely dry either. I use only one set of T5’s to start...the T5 dimensions are 23”x 23” until they’re a few weeks old. And if the seedlings quickly stretch, the light’s too far away. I then move them to a 6” mesh pot full of hydroton with the top of the rockwool about 1-1/2” from the top of the mesh pot, throw them in an ebb & flow system for a month, auto-watering 3x per 24 hours for about 15 minutes each time...then I switch to an RDWC & 4 x 1000w LED’s at 4-6 weeks...

The above method should provide complete uniformity to your entire batch of seedlings & they should all look about the same unless your mixing strains.

Here’s a pic of my girls I just switched over to my tent with RDWC + LED lights last week. They’re now about 6 weeks old and exploding!

Good luck!
Once they leave the dome, how do you water? I am trying to grow in dwc and I am having a ton of issues with my seedlings in RW. I think I am overwatering. And do you leave the dome on for 7-10 days after starting the seed, or once they pop?
 

Sdh777

Well-Known Member
I live in a really dry climate so I leave the dome on for about a week after the pop with the dome vents closed. I then put them in either an a Ebb & Flow where they get aerated 5.8 pH water 4x a day for 25 minutes and I gradually switch over to 15 minutes watering every hour. At 2 weeks I start adding low nutes levels.

I also will move seedlings straight from the dome to an RDWC where the constantly get water & they do fine. I also switched from rockwool to Rapid Rooters 6 months ago and I like them much better. They won’t water log your plants as easily
 

sarahJane211

Well-Known Member
First thank you so much.

It's 900W LED

Not nutes just P.H water and ok don't spray every day may be over watering?
900w printed on the advertising or 900w on your power meter at the wall socket?
Looks like a cheap Chinese 50-100w to me, from the stretch on the seeds.
No need to use pure water on seeds, all the food is already inside them for the first 5 days.
 

etruthfx

Well-Known Member
900w printed on the advertising or 900w on your power meter at the wall socket?
Looks like a cheap Chinese 50-100w to me, from the stretch on the seeds.
No need to use pure water on seeds, all the food is already inside them for the first 5 days.
What other type of water would you possible use on seeds aside from pure water?
 

sarahJane211

Well-Known Member
What other type of water would you possible use on seeds aside from pure water?
I use tap water in my Jiffy pellets (hard water PH 7.2 or higher).
Every single one germinates a healthy plant in 3-5 days.
This one I put in a wet Jiffy pellet Thursday afternoon ............ and covered.
morning check.jpg
and it was up Saturday evening (check every 1/2 day, no misting or watering).
up now.jpg
Sunday it was re-potted in coco and watered daily ........with 1/4 nutes @PH 6.0, and Tuesday (today)............
tuesday.jpg

No pre-soaking, wet tissues & plastic bags or any of that nonsense ........ every one comes up.
 
Top