Your temp sounds good. The ppm can get ya and your ph. Maybe it will get here in time. Your ph you can check with swimming pools supply or fish tank supply they are cheap kits. Oh what kind of water are you using ? I use distilled that I make my self and I read that not only is the ph very low that important minerals are missing and not in good amounts in the plant food. I use dyna gro and the calcium and magnesium are very low in the grow and bloom formulas. I hope this helps. Mine are getting a touch more curl today. Come on cal-mag.