cheers mate. Do you thenk the marks on the leaf are anything to do with over nute then? I have pics of the whole plant, I'm not sure it will show all the marks on all the leaves tho.Back off and just feed with plain water for the next couple of watering or only at 25% nute. Those leaves won't recover but new growth should be ok. She does not look too bad, but I can't tell unless the whole plant is pictured.