nothing for my snails to eat?

[digitalsteve]

hey guys, i have a concern, i have got my tank set up , its a couple of weeks old , my lr is fully cured , it came out of an existing set up at hidden reef. and i am worried that my snails will have nothing to eat is there anyway to feed them or what whould i feed them , and i guess does anyone have a scoop or live sand they can spot me to start growth in my sand bed , tank looks great though