I got this clone from a friend of mine and threw it in with my sprouts, but now it is developing brown dry marks on it's leaves and on one of them it kinda look like it's clawing upwards... any I took pic any advice would be great. Happy Growing The Phantom
What kinda soil and nutes are you using? Idk if light can penerate that cup, but if it can you need to cover the outside with something, like duct tape or paint so no light gets through to the roots. Also how do the leaves feel? It looks like they are dry and crunchy.
probably a phosphorus and nitrogen deficiency that is causing the clone to take the phosphorus from the leaves and put it into roots.