Leaves curling & new growth thin urgent help

I'm two and half weeks into veg and its been going fine until 3/4 days ago my plants new growth begin to get thin & curl I attached two pictures ( web cam, not the best quality, sorry! )
There is no discoloring and there pretty healthy apart from this problem that has occurred. I think it may have something to do with the ph of the water as i'm using a ph drop tester which i don't think this gives completely accurate results? It may not be.. But can anybody help and tell me what they think it could be?

looks liek iz hungry! what iz ph wat iz temp etc... are u feeding nutes ???

No not feeding nutes as the soil im using has enough for the veg stage. Temp is around 70-74 and no lower than 60-64 at night. The PH is around 6.5-7 i won't have a ph tester till next week, as i said im using the ph drop tester for now but i'm not 100 percent confident that its accurate

Looks like a touch of water stress........maybe let them dry out just a bit more between waterings....

I have had that very same experience. Your light is not close enough to the plants. They are not able to photosynthesize properly. The shape of the leaves and underdevelopment of the nodes give away this issue. put your light closer and in one week tell me what you notice.

Cannabis Philsopher said:

I have had that very same experience. Your light is not close enough to the plants. They are not able to photosynthesize properly. The shape of the leaves and underdevelopment of the nodes give away this issue. put your light closer and in one week tell me what you notice.

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I have just moved my light further away as i felt they are just about to grow to close this definitely isn't the problem

cowboylogic said:

Looks like a touch of water stress........maybe let them dry out just a bit more between waterings....

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Agree, i was feeding a little bit daily.. Now i know to feed every 2/3 days. Will the affected areas fully heal from water stress?

GREENERS said:

Agree, i was feeding a little bit daily.. Now i know to feed every 2/3 days. Will the affected areas fully heal from water stress?

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No harm, no foul...your good.......

Thank god for that! The affected leaves that curled up seem really dry like they have shriveled up a little
I'm not 100 percent sure this is from water stress could it be because i haven't feed them any nutes? I'm using canna professional soil and was planning to use nutes 4 weeks into veg & veg for 6/8 weeks.

Anybody else got ideas on what the problem could be?