for the current stage i use biogrow... i dont ph water just use tap water left for 4-5 daysu might have some pH problems as well!! your tops doesn't seem healthy! what nutes u use?
dont use vinegar! use ph down and up from GH its only 10$ and it comes with chemical ph test!any suggestions? should i add vinegar to lower the ph? I started biogrow only 2 times till now , maybe if i continue with nutes will lower the ph eventualy?