I gave up on rockwool cloning, too slow, and too high of a fail rate...
I also gave up my clonex, roottech, etc....
Plain RO water, and a pump feeding to 5 misters.... real simple aero cloner I got on amazon for like $40... made into a 3.5gal bucket....
If you gotta use the rockwool/rooting cubes, I would definitely keep the dome on, you want the moisture n warmth, and set them on a seedling heat mat if you can.
Only mist with RO water, or water that has had several says w/ an airstone in it, so you are not just smothering your plant with chlorine. No nutes of any kind either.
Plain, zero water.
With your CFL (im assuming this is a flourowing style single bulb actual 125w, its what I use for seedlings) keep that bitch super close... within a few inches. If using dome, keep it about an inch off the top of the dome.
Put clones in, let them be for 5-7 days before checking for roots.
if u need to add water, again, use O2 infused filtered water, not just tap water... no idea whats in that... baby roots are very sensitive, they want only water, warmth, and dark.