Seedlings HELP!!!

Deadmagician

Well-Known Member
First time grower.

Germinated 3 Gorilla glue auto seeds, planted in 5 gallon, fabric pots (yeah I put them in their final pots, I know opinion is mixed about doing that as a noob)
with coco about 10% perlite 5% vermiculite and some mycorrhizae mixed in (as per packet) around the site I planted my seeding.

Today is day 7. 1x1x2m grow space with 1 x 300w LED at about 60cm dimmed to 80%. They’ve had good air flow 2x small fans (not directly on seedlings)
Temperatures have been unusually high for the time of year though 24-28c I have had a humidifier running intermittently, hard to regulate as it does have settings but it’s pretty much either on or off, so I check that regularly, essentially letting the humidity build up 80% and then dissipate to ambient around 60% don’t know if that’s a good thing to do if I can’t keep it consistent?

After about 2 days they had sprouted the cotyledons and then the initial two leaves pretty quickly and Looked very heathy & green. Last couple of days there’s been no growth though.
Leaves are a little pale slightly curled at the edges.
Stems are very purple.

I was initially just using pH’d water to about 6.3.
However, I read that this was too high for coco medium and adjusted to 6.0 then 5.7 (which they had at their last watering) with a view to bringing it down to 5.5, but not all at once.
Also added some root stimulant nutes to the water as per manufactures guide for seedlings.

So my seedlings are in a 5 gallon fabric pot and I’ve been watering with around 200-300ml of water per plant in a two inch circle around the seedling (not the whole pot, outer is dry)
I have read some instructions online which say even at these small amounts of water I should get run off in a big pot, but I get no run off from that small volume of watering. I had heard even seedling watering at about a cupful you should see some run off, I don’t.
I don’t want to give them too much water because I think I perhaps have given them too much already as I tend to water each day and although the first quarter inch is dry ish, it’s not entirely dry so perhaps I should water less frequently and wait a couple of days for it to dry out?

Also my lights have been on 24hours and today I decided to switch to 18/6 which was always my intention once the seedlings got going. Is giving them their first but if dark and potentially lower temp gonna help?

Are all these changes at once not doing my seedlings any good?
Is the light I’m giving them sufficient/too much?
Am I overthinking/worrying unnecessarily/being impatient and they are just concentrating on root growth at the minute?
Basically
“HELP!!!!!”

Thanks in advance. (I will post a picture later on)

(I’ve set up a ghetto blaster with some Bob Marley on for my girls to listen to while I’m at work, perhaps that will help?)
 

Rurumo

Well-Known Member
200-300 ml is too much when the seedlings are very small, first couple of weeks. Give them more like 20-30 ml at a time around the seedlings-this will dry out quickly, so you'll need to do this a couple of times per day to start. You definitely shouldn't see ANY runoff at this stage. A slight wet/dry cycle helps pull the roots out into the media. As they get bigger, you increase the amount of feed and water outward as the roots expand. This is the reason people don't necessarily recommend planting seeds, or tiny seedlings in a big pot-because it's a tedious process to nurse them along as the roots expand. You need to feed from day one, but feed LOW ppms to start, since you aren't watering to runoff, like 200 ppm to start, 300 after a couple of weeks, etc. Start watering to runoff once the roots fill out the pot.
 

Deadmagician

Well-Known Member
They need to be fed nutrients in coco.
Hey, yeah I’m aware the medium has no nutrients, sorry neglected to mention that along with the root stuff I did put a small amount of coco specific nutes (slightly less than manufacturers recommendation) in my last feed/watering.
however as we’ve established I’ve probably put a bit too much in for the size of the seedlings.
cheers.
 

twentyeight.threefive

Well-Known Member
Hey, yeah I’m aware the medium has no nutrients, sorry neglected to mention that along with the root stuff I did put a small amount of coco specific nutes (slightly less than manufacturers recommendation) in my last feed/watering.
however as we’ve established I’ve probably put a bit too much in for the size of the seedlings.
cheers.
You need to measure both the strength of the feed, EC/ppm, and the pH. I start my seedlings off at 0.4 EC.

I also start seeds in a small starter pot and feed about 60ml a day.
 

Deadmagician

Well-Known Member
200-300 ml is too much when the seedlings are very small, first couple of weeks. Give them more like 20-30 ml at a time around the seedlings-this will dry out quickly, so you'll need to do this a couple of times per day to start. You definitely shouldn't see ANY runoff at this stage. A slight wet/dry cycle helps pull the roots out into the media. As they get bigger, you increase the amount of feed and water outward as the roots expand. This is the reason people don't necessarily recommend planting seeds, or tiny seedlings in a big pot-because it's a tedious process to nurse them along as the roots expand. You need to feed from day one, but feed LOW ppms to start, since you aren't watering to runoff, like 200 ppm to start, 300 after a couple of weeks, etc. Start watering to runoff once the roots fill out the pot.
Hey thanks. This makes complete sense in a nutshell ‘you’ve got to be patient and nurse them slowly etc…
Of all the stuff I’ve read I think this is what noobs need, a bit of reassurance.
rather than, ‘don’t use coco for your first grow, or don’t do autos’
it’s a bit late now! Haha I’m more than prepared to put the effort in.
So yeah, I was watering twice a day for the first 4-5 days and I’ve just increased the amounts exponentially so basically I just need to chill and let it dry out? Then water little and often.
 

Deadmagician

Well-Known Member
You need to measure both the strength of the feed, EC/ppm, and the pH. I start my seedlings off at 0.4 EC.

I also start seeds in a small starter pot and feed about 60ml a day.
Oh okay interesting. I will try to work on that basis, thanks for that. I might try transplanting from a smaller pot on future grows, seems like a more sensible approach to avoid over watering and such.
 

Johiem

Well-Known Member
I've done pretty much the same with one of my autos, although I saturated the whole pot when I put the jiffy pod in the coco. She is doing great, she started flowing about a week ago so it's time for me to get aggressive with her. Don't have a current shot of her I'll try to get one later... no promises, I'm a little high.

Edit: I think your little ones look good. Also it is rather difficult to over water in coco. Even when saturated (not bogged, swamped or drowned) coco holds plenty of air. The system/style they are taking about when getting run off from tiny amounts of added water is basically keeping the coco 90%saturated. Your seedling cannot handle that environment yet.
 
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xtsho

Well-Known Member
Hey, yeah I’m aware the medium has no nutrients, sorry neglected to mention that along with the root stuff I did put a small amount of coco specific nutes (slightly less than manufacturers recommendation) in my last feed/watering.
however as we’ve established I’ve probably put a bit too much in for the size of the seedlings.
cheers.
Well so far you've made it farther than many. You got your seeds to sprout which is something many can't seem to do. Congratulations for that.

With seedlings you want to use less than half strength nutes at first. In the future you can charge the coco by soaking it in 1/4 strength nutes so there's already something there for the seedlings.

They look OK. Just don't love them to death and you'll do just fine.

Good luck with your grow. :weed:
 

bam0813

Well-Known Member
Sorry for being out of my lane but I’m learning too

edit: I’m trying to learn too. Reworded this because after reading it back it seems like i was saying I knew something he didn’t which wasn’t the intention. Truly just learning something diff
 
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Johiem

Well-Known Member
Probably to much water. Let them dry out inbetween waterings.
Think you have coco and soil confused. You can let it dry a little but coco is meant to be moist.
If you're looking for a dry surface for pest control, top with perlite. Dry surface, moist coco.

Edit: once you get the root system established.
 

Deadmagician

Well-Known Member
Guys!
I fucked up.
But I guess that’s what this forum is for and I’m going to tell you (feel a bit stupid) that my airflow has actually been quite poor.
I thought the back vent was open on my grow tent (or at least allowing for enough air coming in) but it isn’t. The flap is down and it’s kinda back to the wall so I didn’t notice also because my output fan (carbon filter one) was turned down to medium I could really tell.
When I upped it however and shut the tent, it was drawing some serious negative pressure.
How stupid of me, but I guess that’s how we learn hey?
So I think my watering/feeding regime was okay but they have been starved of fresh air and co2 and that’s probably why they seem to have stopped growing at the 5 day mark.
hopefully that won’t have adversely effected them as they are only 8 days old.
Please don’t laugh at me.
Hopefully my girls will thrive now they are getting a bit of air.
 

Johiem

Well-Known Member
Learn everyday, otherwise you stagnate. I had to open more vents on my tent because of the heat. But good for noticing. Keep us posted
 

xtsho

Well-Known Member
Guys!
I fucked up.
But I guess that’s what this forum is for and I’m going to tell you (feel a bit stupid) that my airflow has actually been quite poor.
I thought the back vent was open on my grow tent (or at least allowing for enough air coming in) but it isn’t. The flap is down and it’s kinda back to the wall so I didn’t notice also because my output fan (carbon filter one) was turned down to medium I could really tell.
When I upped it however and shut the tent, it was drawing some serious negative pressure.
How stupid of me, but I guess that’s how we learn hey?
So I think my watering/feeding regime was okay but they have been starved of fresh air and co2 and that’s probably why they seem to have stopped growing at the 5 day mark.
hopefully that won’t have adversely effected them as they are only 8 days old.
Please don’t laugh at me.
Hopefully my girls will thrive now they are getting a bit of air.
It's highly doubtful that the vent had anything to do with whatever you are worried about. There is plenty of ambient Co2 in the air. Even if that tent was airtight it would take weeks or more for 3 freshly sprouted seedlings to use up what was already in the tent.
 
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