Edges Of Seedlings Leafs Curling

Heyguys some of my dark helmets are curling alittle on the side I'm interested to know what you all think is causing it. Here are some pictures like to hear your opinion. Being fed 3ml per gallon heavy veg A&B
Cal mag 2ml facilitator .5 start boost and start boost at 4ml maybe alittle less feel Aptus says to feed seedlings alittle to heavy

I personally think it could be a sign your plants are transpiring water too quickly.
So they reduce their surface area to make less leaf exposed to the heat of the lights on their surface.

Think they do this even if it isn't caused by heat. For example if your humidity is very low.
They may absorb water from the soil, travels through the stems and up & out through the leaves. If it happens too fast it may react the same.

This is my opinion of 1 of the reasons why this "may" be happening.

I'm sure there are more reasons why this may occur.
Just adding to the list of things to consider.

rmoltis said:

I personally think it is a sign your plants are transpiring water too quickly.
So they reduce their surface area so less leaf is exposed to the heat of the lights on their surface.

Think they do this even if it isn't the heat causing it. For example if your humidity is very low.
They may absorb water from the soil, travels through the stems and up & out through the leaves. If it happens too fast it may react the same.

Just my opinion.

Click to expand...

Thanks man I think you might be right my heat and humidity haven't been perfect. I'll keep an eye

Top of coco looks a little dry too, but good to not overwater seedlings.

From what I've read it could be heat stress, overfeeding or ph issue. so I would check your temps and ph and try feeding a little less see how they respond to it. depending on what kind of soil your using i usually don't feed for the first few weeks because the soil should be plenty enough to get them started