hey guys, sorry if i come across as a total noob, but ive had a few plants growing in a rock-wool medium. oxygenated water is constantly being pumped to the plants and the excess is drained back into a reservoir.


basically my plants are starting to turn yellow from the middle of the leaf outward.... my PH is getting a little high, being around 7.3. i originally thought it was nutrient burn, but i flushed my water and have been giving it nothing but water for day 2 now. then i read that higher PH levels can hinder nitrogen intake, so it could be a nitrogen deficiency but im not sure. maybe you guys can help?
ian.van Reviewed by ian.van on . first post :) arrrggg plants turning yellowish! hey guys, sorry if i come across as a total noob, but ive had a few plants growing in a rock-wool medium. oxygenated water is constantly being pumped to the plants and the excess is drained back into a reservoir. basically my plants are starting to turn yellow from the middle of the leaf outward.... my PH is getting a little high, being around 7.3. i originally thought it was nutrient burn, but i flushed my water and have been giving it nothing but water for day 2 now. then i read Rating: 5