[SICK][PICTURES] Yellowing and curling down. Young plants [PICTURES][SICK]

lol, Fuck the PH you've simply over watered.

If you're worried about your PH top feed the soil with dolomite lime (crushed)

It's gonna need a bigger pot, more light.

Add some perlite to your soil

Yeah what The Grotesque said. Lime and a REPOT.

UPDATE: Everyone will be glad to know that they plants are healthy/ier than last week. I gave them some more nutes at the time of my first post, and then some extra darkness. They have absolutely shot up and have a much nicer green about them. Thanks for all the help guys, still haven't repotted, but I am getting there. Will probably be done by this afternoon.