Hi guys, thank you for response I shall take pictures in natural light soon and post them for further investigation. Underside of leaves doesn’t appear to harbour any sacs or anything like you’d find with the aphid pest pics I’ve seen.
Please can someone help me diagnose this issue, I have had a look at deficiency sheets but nothing jumps out at me, I’m thinking magnesium def, too high a PH coupled with possibly overwatering with LED too close initially? Please help it has my head hurting.