i would start out with 1/4 % and go from there cause u can always add but not take backi've used gh nutes i think there good but seems like a ford would be to say a bmw not sayin there bad but not the best by any means i have def noticed a diffrence when i switched to advanced nutes but to get bigger better buds and growth u do need more than the 3 part nute system sum might say not but i have seen a big diffrence when i have added the "extras" if u will
palerider7777 Reviewed by palerider7777 on . PPM Levels - after reading; still not sure Just some quick background. I have some California Orange Bud that is about 4 weeks in. It's in a Rockwool Hydro-Drip system and currently under a 400w Sunmaster Cool Deluxe MH light (Lights are 21-inches above tops). For nutrients I'm using the General Hydroponics 3-part system as well as Cal-Mag that is added to distilled water. Picutres attached are from week 3 and week 4 after they were seeded. I've been reading all the posts about PPM and I've used the chart Zandor provided Rating: 5