Robs
Well-Known Member
So just finished setting up two 18 site uc systems & plants are in bubble trays getting close to transfer. Question is this. My ppm I set at 110 and theirs 20 plants total all over a foot tall. Water volume is 70 gal. Total. Two bubble 4x4 tables with 20 plants. I have a topoff res and the ppm I mixed in 48 hrs. Ago was 180ppm. The ppm in bubble trays was 110 & still 110 ppm today after eating all 5 gal. With the higher ppm. So should I bump up the topoff res ppm to say 250ppm? Plants taking off water temperature is 67-68f plants look healthy just want to make sure they're getting all they need.
