Leaves twisting !!!! Any advice???

So I'm into my first week of veg. With my babies n started to notice some of the leaves are beginning to twist.Hmmm I was thinking maybe half strength might have been a bit too much to start them off at but not really too sure it's my first time experiencing this type of issue as well as with this particular strain. At the moment I'm running on a flood table RO water of course ph at 6.0 ppms started low 300s I'm using GH flora series , GH rapid root , Floralicious plus and cal mag room temp 70s all day long RH 50s-60s.heres a few pix any input will be greatly appreciated. Thx n HAPPY 4/20 everybody

I notice leaf twisting when;

a) I over feed
b) the lights are too close

I don't give my bitches any nutes until they're at least 6 inches tall.

Very mild, I wouldn't worry yet. Just keep watching and reading them. PPM's sound fine to me.

Yeah beefbisquit at first I thought light issue but they have a good distance,might have to skip a feeding or two to see if they straighten out. I did notice on a couple the slightest tip burn. But hey thx for the input

Nutureboy yeah I usually try to start off light on the ppms n gradually work my way up depending on her reaction. Believe me I read these babies like a good book