I was planning to put them in a dwc bucket after a few roots were starting to show, with about a quarter strength nutes, gh flora using the 321 formula. They are only getting water right now. I've been letting fresh air in to the domes about twice a day and checking that the cubes are still moist.

I hadn't thought about the light on the roots, would putting them in a plastic cup wrapped with something to keep it dark keep it dark work until I put them in the bucket?