New seedling leaves twisting but not yellowing and stems weak? Help!

[Thetallstoner]

Hey guys, I have 3 white widow seeds planted in miracle grow potting soil (only stuff I had available) under a 180 watt led, they were growing fine and are in the second week of veg and they just started showing some weird curling/twisting of the leaves! They are green but just twisted and I'm worried something is wrong. I'm not sure of the pH level yet, I have a test kit coming in a couple of days. Can anyone determine what's wrong with my babies? thank you!

 

[Thetallstoner]

Here's a picture of the poor guy, it doesn't look too bad now but I'm afraid it's going to get much worse. Also when I sprayed him with some water, the leaves were so top heavy the plant just fell over and I had to prop her up with a pencil, any diagnosis? Thanks

 

[Thetallstoner]

Can anyone help me out? The leaves are also a darker green than usual so I'm thinking N toxicity, but would the N make the leaves twist and corkscrew like that?

 

[Thetallstoner]

The stems and leaf stalks are turning purple now and the leaves are twisting even more! I'm afraid I'm going to lose them soon