Ok i have a few pics of a few leaves that came off of one of the bubs

its still sick I dont know if I am leaning more towards nute burn at this point or some deficiency. I watered them yeaterday pure water b/c fed last and the ppm on my stick going w EC x 700(thats what Foxfarm nutes go by) I was at 980 ppm, which to me felt high but according to the stage my plants are in and this reference site I use on sick plants i am in the range. Seedlings should be around 50-150 PPM
Unrooted clones to be around 100-350 PPM
small plants to be around 400-800 PPM
large plants to be around 900-1800 PPM
Last week of flowering use plain water.
My hydro shop owner says at