trayne
Active Member
Hey. So I've had these plants growin in 4x4 rockwool cubes.for the plants look reasonably healthy. But there's two plants that have a few stalks turning yellow. I felt it was nutrient lock. My question is how would you go about fixing nutriend lock in rockwool? And yes the cubes are too small for the plants and also the cubes are so old that they are deteriorating ..