Vumar
Well-Known Member
I had 2 questions concerning PPM's.
1) First, is this accurate?
Seedlings 50-150 ppm
Unrooted Clones 100-350 ppm
Small Plants 400-800 ppm
Large Plants 900-1800 ppm
If not, please correct
2) If I feed my plants say friday and my nutes have depleted a few days later... should I fill the res with water, take a reading, then calculate nutes to add to get my PPM back up or should I just add water to tank and wait till the week's flush/res clean and then start with slightly stronger nutes? Im just not sure if I need to have my PPM's at a set point for a week or if I should feed then wait till they finish the week then re-up~
1) First, is this accurate?
Seedlings 50-150 ppm
Unrooted Clones 100-350 ppm
Small Plants 400-800 ppm
Large Plants 900-1800 ppm
If not, please correct

2) If I feed my plants say friday and my nutes have depleted a few days later... should I fill the res with water, take a reading, then calculate nutes to add to get my PPM back up or should I just add water to tank and wait till the week's flush/res clean and then start with slightly stronger nutes? Im just not sure if I need to have my PPM's at a set point for a week or if I should feed then wait till they finish the week then re-up~