HELP PLZ

Is this a simple nitrogen deficiency or something I'm missing, they are potted in soil ph is between 6.5-6.7 my standard water comes out at 0.8ec. Used no notes until a few days ago and have added plagron terra grow and up ec to 1.0 for 1 feed.

thats just a simple nitroen deficiency if it starts to get red splotchy spots then thats gonna be cal mag but you wanna fix that asap becauce deficiencys like that can cause other deficiences then youll be chasiing your own tail. good luck

looking like K deficiency?

I was thinking at 1st was a N deficiency but could also be K, also from the chart looks abit like a sulphur def aswell, that's why I asked to help lol.. I'll bump there feed up to like 1.1ec with some N and K and see from there, what do ya think? Also how quickly should I see recovery as I don't want to over/under do it..

Thanks