Hello all. First hydro setup. This is about a week to 10 days into the grow. My ph was at 8.2!!! so i got some ph down, got it to about 6 tonight. PLan on gtting it down to 5.6 ish tommorow. The plants have probably been running on the 8.2 ph the whole time. Do you think thats what is cuasing the yellow/brown spots?