Leaves Curling Upwards and turning Yellow!!! Help!!!

My leaves have recently started to curl upwards and turn a neon yellow. I just got a PH meter and the water was running a bit high (7.5-8.0). I fixed that problem so could this be the result of lockout because of the PH being to high or are they deficient in something?

Thanks!

My bad, heres some pics...

Yea i'm not expert maybe some of the vets can chime in but i agree your ph was way too high my plants had similar prob my runoff ph was 7.2 and the leaves were curling upward i just watered with 5.5ph'd water and after a few days back to normal. but i do have dolomite added in my soil mix in case it gets too low

yeah your ph is wayyyy to high. it should be around 5.5-5.7 for hydro

thats bs mine is 6.0 and is doing the same thing soo plz someone else chime in