I do use a dome, but no longer spray them after reading a few different post here on RIU. Seems some people spray others dont. i have lost more clones spraying them, than I have not spraying. so I no longer spray...
yeah your leaves are gonna turn yellow, as long as there is still some green on the clone, let it go, i dont toss em till they are completely brown and shriveled up, till then they are viable....