Quote Originally Posted by stone_sensation
where do i get that from? lol my rockwool cubes come in a tray, is that the right thing? or something else.
I just bought mine from the hydro store. There seems to be a standard size for the prop trays, like yours, and the dome is just a cheap plastic piece of crap about the same thickness as the top they put on an icee.

Go here and you can see what the dome looks like.