DWC Green Crack

Started by dropping my seeds into a cup of water. Seeds had sunk within 10 hours and I moved them into the rockwool. I had pre-soaked the rockwool to it’s holding capacity of water, the seeds are now sitting in a germination container with a heat pad underneath. Are used arrowhead spring water for the germination process. I have three rockwool cubes in the picture, but only two are going into the hydroponic system so that’s what I’m focusing on for this diary.