Possible overwatering I need help asap leaves are yellowing

I have 4 plants that I'm growing and 3 of them the

Dos-si-dos33
Amnesia
Gorilla skittles

About 2 days ago I had to water them and now the coco coir is soaked and the leaves only have a tinge of yellow and still look healthy at the moment but slight drooping of outer leaves. They are 17cm high at the moment and just about a month old

How do I remedy this it's mid winter here in New Zealand and have maintained a even 25c temp and currently running my plants on a 18/6 lighting cycle which they are loving. I would love some advice on how to correct the overwatering problem and how to stop it happening again.

Novicegrowernz said:

I have 4 plants that I'm growing and 3 of them the

Dos-si-dos33
Amnesia
Gorilla skittles

About 2 days ago I had to water them and now the coco coir is soaked and the leaves only have a tinge of yellow and still look healthy at the moment but slight drooping of outer leaves. They are 17cm high at the moment and just about a month old

How do I remedy this it's mid winter here in New Zealand and have maintained a even 25c temp and currently running my plants on a 18/6 lighting cycle which they are loving. I would love some advice on how to correct the overwatering problem and how to stop it happening again.

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You can add perlite when you re pot. Overwatering isn’t your issue. You should be watering everyday in coco. I’m pretty sure you’re looking at a ph fluctuation from not buffering the coir or you’re plants are hungry for some nutes.

Are there holes in the bottom of those cups?

I just gave them a dose of 1ml/litres of Yates fish blood and bone fert it's a fish broth with added npk will give that a try and will be re spotting tomorrow and will monitor and get back with res5

Yes there are 12 drainage holes in the pots

Don't stress about it much man. I'm sure they'll be ok.. they don't look bad

These 4 are my new mother plant and will be vegging them for 3 months then taking clones of them for summer in nz in 5 months got to love seedsman lol

Merkn4aSquirtn said:

Don't stress about it much man. I'm sure they'll be ok.. they don't look bad

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yeah man, yellowing of those juvenile leaves is no big deal, don't stress and "over love" your plants--that can make things a whole lot worse. remember: they want to grow and they're really good at it. You're just there to help 'em along.

Thank you very much for your advice I really appreciate the time you have taken to help

Yeah as someone said there mate it's cause you're not feeding often enough.
Treat coco like soil with a dry cycle and the nutes just build up and up and up. Quickly.
Causes tox problems which in turn cause deficits and fries the ph which causes complete lock out.
Check the ppm and ph of your feed.
Run some through the pot and collect the first 200ml of run off and check that.
You'll be able to see it in the difference.
Bear in mind it's a massively watered down result too so when you see the run off ppm is twice as high it's more likely 3-4 x higher.

Feed every day to full saturation and run off at ph5.7 -6.3
200ppm (0.4ec) for seedlings
500ppm (1ec) for veg

Do that and it's almost impossible to go wrong.