Well heres the issue, plant has some black stuff on the leaves, no clue what it is.
1 month old, ffof soil, fresh ph water, c02 tank for the room, temp 77-82, 600 mh, 24/0, 2 1/2g pots.
now for like a week my ph was low and i didnt catch it, it was 5.0-6.0. Now i got my ph to 6.5 and i have...