derek910
Well-Known Member
I have blue dream growing. It's in the vegetative state and is on Day 20 since it first popped out of the rock wool. I'm running a DWC hydroponics in a five gallon bucket. Grow medium is a clay pellets. I believe this is called hydroton. I'm using the Fox Farm nutrients with the recommended feed schedule. I've flushed the system one time with Sledgehammer and I did that yesterday. I also topped the plant 2 days ago. My questions are how do I get the white moldy looking stuff to stop growing on the rock wool at the base of the plant. I've put hydrogen peroxide on it a couple times to kill it, but it keeps coming back. Should I lower the water level so the rock wool dries out? Do all of the roots need to be submerged? I read your supposed to lower the water to train the roots to grow after the water. Also there is some yellowing on the edges of the leaves. I had my light too close before. It's a 300 watt LED and I had it at about 16 inches. I read that it should be 20" + with an LED so I raised it to 24" based on the manufacturer recommendations. I appreciate any advice and help you can offer.
