help with a sick plant

up until about 2 days ago, this plant was vegging great and growing about an inch a day. then in two days the leaves curled under and copper colored mottling between the veins appeared. it was very abrupt. my two new seedlings (different strain) are doing the same thing. i have been reading and learning for some time-this a great forum. any help is GREATLY APPRECIATED. thanks in advance.

whatare you using for nutes? i would say too much nitrogen

nothing yet. they cloned in 16oz cups til rooted. 50/50 mix of ocean forest and light warrior. then went to a one gallon pot with a mix of 2/3 ocean forest and 1/3 light warrior. they had been vegging for about three weeks when this happened. i use tap water that is ph'd down to 6.5-6.8

i dont use that soil does it have anything in it already? if not then i would have to say everything deficiency.... you should start with low doses half or less. hope i helped

needs Mg/Cal shot?

i would have picked sweetgum leaves personally...

added to my save list in any case.
Thanks!

ChubbySoap said:

needs Mg/Cal shot?

Click to expand...

cal mag is where i am leaning to. would a ph that is too low cause this deficiency to show this way?

yep. sure can.

EDIT:
i think it's called, "lockout", but i may be mistaken

Certainly nutes will be locked out if the ph is too low or too high. It is usually better to err on low when plants are younger but ideally you want to be 6.3 at least. 6.45 seems to be my sweet spot

oops, and ermm, to me that plant looks as tho it is actually Nitrogen deficient (which would incidentally also be exasperated by low ph) Magnesium would start at the bottom of the plant and work its way up which doesn't look to be the case?

eDIT..

Are you feeding them? Sorry, I do not know that soil personally.

PH is fundamental to get right. It can cause issues that look like many other issues. Also overwatering can cause that look.