sounds like you are hyrdro then if watering 4 times a day. That ppm seems pretty low to me. How old are your plants? Maybe if you provide a little more info a hydro grower will step in here and help you out.
Hey guys, thanks for the replies. I am growing Hydro. Ebb&Flow.
Im growing Mandala Seeds Satori (6 weeks old in veg)
they are between 6-10 inches tall (ran into problems that stunted growth at the start of grow, they have since started growing again)
I have 2 10x4 Tables Divided in half with 20 plants in each section (80plants total)
3 1000 watt HPS lights above each 10x4 table all with air cooled reflectors
Im using Flora Nova 1 part and Natures Nectar Organic Nitrogen because of an N deficiency i had early on.
I water 4 times a day during lights on.
Im growing in Hydroton.
Room temp are always 75-78 degrees during lights on, drop to 65-70 during lights off
Under the lights they are sometimes 86-89 ( trying to get more fans to circulate the air better )
Last time i flushed, the same thing happened. plants turned yellow then i supplemented Nitrogen at 1/4 strength and they grew green again. Now even with the Nitrogen some of them are yellowing and i have 2 that are drooping but i lower the watering and also raised it and the drooping plants dont recover. Worst case scenario i will just pull those out and put them under flouro's but i want to fix the problem that is causing that before it effects other plants.
