Seedlings: One leaf curling up, opposite leaf curling down!

I need your help guys. My Amnesia Lemons been vegging for 9 days now under a 250w HPS.

After I transplanted them from jiffy pucks to the new containers, I watered them with 1/4 strength of Canna Rhizatonic, which is suppose to reduce the stress the plants get from transplanting, pH 6.7.
The soil I'm using is Plagron Grow Mix, which contains fertilizers and nutes good for the first 3 weeks or so.

My temps are 78 - 87 and RH 40% - 60%....

And so this morning I noticed something weird on one of the Amnesia Lemon seedlings...

It has developed it's second set of true leaves, and one leaf is curling up and the opposite is curling down.
Tonight, I noticed another seedling with the same symptoms.

And I noticed that the middle of the leaves are light green.

THANKS RIU!

yeah you should be fine. Could be a bit of burn, but def not a deficiency since ur soil has ferts stock. lower your room temps to 82F tops if you can. If you are running temps that high I hope your hps is far from the seedlings.

Ya its a heat prob your having but not bad.....My tips get like that with a t-5 bulbs when too close. Plant looks green and you have some time till transplant looking good.

Yo dude that plants like break dancing or mexican waving at you!lol!

Thats not great but i would just consider maybe that soil is a little too hot fert wise for them, i would still be in a good seedling soil at that stage and if it needed to be a touch stronger then i would add 150ppm to 200ppm of ferts.

Should grow out of it but i would wait for a confirmed deficiency before grabbing them ferts with that soil, possibly even just transplant into bigger pots in a week or two instead of giving one drop of ferts and then you still got a few weeks before the plant needs ferts again in a bigger pot.

I believe this is whats called cupping and twisting of the leaf.

Peace

MrGhettoGrower said:

They look alright might be time to transplant again that pot looks kind of small. Never heard of your soil or nutes. You really don't have an issues yet

Click to expand...

Here you go ghetto, hope this link works -

http://www.plagron.nl/Frontoffice/UK/Producten/Substraten/grow-mix.html

Says EC 1.4 and 1.6! You can see why shes popping and loccing!lol! Peace

Thanks for all the replies. If its due to the nutes in the soil, I wonder why the tangerine dream hasnt shown the same symptoms yet, cuz a lot of people say the TD is very nute sensitive.

Its happening again need help!

After the first incident the plants recovered.

So couple days ago I transplanted them into their final 2 gallon pots, using the same soil.
I then watered with 70% dose of Canna Rhizatonic, which is basically vitamins and hormones. Its suppose to prevent shock after transplant. And thinking my plants were at day 18 at the time, they would be able to take it. pH 6.5

Now theres a lot more curling going on. Most tips of the new growth are curling down, some even up or sideways. Some leaves look like claws.

Is the soil too hot, or is the rhizotonic bad for them? I used it in my first grow and the plants always responded good.

Will they recover from this or should i flush them?

Sure its not too hot temp wise for them? Peace