Member, from NULL
I read this idk if its good 1-100 2-200 3-400 4-450 5-500 6-525 7-525 8-525 9-550 10-550 11-400
PPM doesn't matter.
What Tek is telling you in your thread is correct.
You simply need to go by PH level.
Here's the easiest way.
First, mix your water and nutrients. Check the nutrient bottle for its recommended amount. Then multiply that amount times .25, or 25%.
So if it calls for say, 20ML's of nutrient per 1 gal of water, a quarter strength dosage would be 5ML's of solution in 1 Gal of water.
If you are only feeding it 1/2 gal of water, then that would be 2.5ML's of nutrient and so on...
Does that help?
Separate names with a comma.