Today when i checked the res's PH and ppm I saw that some of the roots are turn brown. also the 1st set of leafs have some brown spots, this started yesterday.
water temp: 80f ( i know alittle high)
2 air stones
ph 5.6
ppm 50
air 81f
every 3 days I have been added one Tea Spoon of h2o2, to a...