Strange Leaf Deformity

Hi all, i have a leaf deformity thing going on... the variety is Strawberry Diesel. They are in a hydro system, 400-700PPM. Taken as clones about a month ago from a plant i was given... (motherplant shows signs ov this prob too!)

The tips ov the leaders and Lateral branches are "twisted"... the leaf seems to grow on one side only, so the tip "curls" around... Some older leaves have slightly turned up edges. Colour is ok...

Oh, I have a Northen Lights Special in the same tank that looks fine and healthy...

I've sprayed this evening twice with Epsoms Salts thinkin its a Magnesium Deficiency...

Aynything else i can try..?
Is it even a Magnesium Deficiency..?

Thanx in Advance

XX

possibly revegging?

What is your temps/ventilation set-up and PH?

Ahhh yes i did reveg the mother plant... Which also show signs ov this problem...
Temps are steady 70 degrees. PPM at about 700. EC 1.7. Good ventilation...
Shall i start again witj a different strain???
XXX

i had some pretty strange twisting of the leaves early in veg, but they straightened themselves out over time. i wouldnt be too worried about it. if you care for it, it will grow.

thanx babes... i wish i were as confident...
oh well back to the Good ole Northen Lights Spesh...

Thanx for all ya helps.
XXX

yes 40oz, the leaves have started growing ok again now...
thanx to everyone ho helped...

XXX