This is a dwc grow and my plants are starting their 2nd week of 12/12 (even though they have not showed signs of flowering yet). I have not idea what this is as i cannot match it with any of the "troubleshooters". The leaves start developing black spots that eventually take over the entire leaf. It slowed down after i didn't add any nutes for a while so i suspected that it was some sort of burn, but they've been off nutes for ~2 weeks and the new top growth is still showing small potential specks.
They start like this
and end up like this
Another problem i am having, though not apparent from the camera phone pictures, is that the top leaves of the plants are turning yellow while the bottom leaves remain green.
They start like this
and end up like this
Another problem i am having, though not apparent from the camera phone pictures, is that the top leaves of the plants are turning yellow while the bottom leaves remain green.