Marijuana leave deformaties

A question from a fellow grower:

Leaves are two toned one side seems mostly regular and dark green but the other half, ( side by side ) on the same leaf has light and dark green sections and seems shorter? The leaf kind of curls towards the shorter side? I P.H. my water and use fox farms Ocean mix with general hydro nutes. I start seeds under T-8 fluorescent s then move them under T-5’s to veg. I put them into 12-12 cycle under H.P.S. for bloom. Nugs seem okay, just not what I expected? Temps do fluctuate somewhat as winter is trying to make up it’s mind rather or not it’s coming here.

U think your biggest issue is lack of substantial light. :slight_smile: