No fert AT ALL.
Be sure the RW is at the correct pH.
Mycos are nice once you know you've got survival, but on your first go-round I'd leave them out.
STERILIZE your dome and tray before use.
Mist the leaves with wilt-pruf and allow to dry before putting the dome on, then mist the inside of the dome, not the plants.
Don't use the heat mat if your ambient temps are over about 72ish. It will be slightly warmer under the dome, and TOO MUCH heat can encourage fungus.