frag tank help

[fishguy007]

i have some good ideas on here for a frag tank

so i want to set up a 20 gallon frag tank. can anyone help with waht lighting etc that i may need to buy.

i am thiunking of a 20 gallon with little live rock. just to put my frags in and get some growth before i put them in my 90 gallon.

-what lighting will i need
-do i need a filter. if so what media?
-do i need to protein skim.

i wont put fish in it. just coral frags to grow. do i eed crabs snails etc
and what wattage lighting do i need.