Hello all, I am experiencing some issues with my second grow and I could use some help. I've researched all the sick guides thoroughly and I have yet to find exactly what the problem could be. These plants were given to me by a friend and they came with spider mites so I recently sprayed them with soapy water and I threw them into 12/12 that same weekend. Once inside I switched from Tap (ph of 7) to ro water with a ph of 6.3 and that is when the spots started. I've switched back to ph of 7 since the plants didn't seem to have a problem with that. Any help would be greatly appreciate!!!