I have had freshwater systems for years now. I'm planning on setting up a saltwater system. I have done some research but I'm still stumped on a few things. I have a 10 gallon a 30 gallon and a 55 gallon. I plan on using my 10 gallon for a sick tank, my 30 gallon for a frag tank and my 55 gallon for my show tank that will house both fish and corals. Now my question is what equipment will I need for each tank?

From my research for a 10 gallon sick talk I'll need...
small canister filter
1 powerhead
sand
live rock
Do I need a protein skimmer for a sick talk?

For a 30 gallon frag tank I need...
small canister filter
2 power heads
sand
live rock
Coral starter kit calcium, What other vitamins and minerals will I need?
Do I need a protein skimmer for a frag tank?

For a 55 gallon show tank
large canister filter
2 power heads
sand
live rock
Coral starter kit
protein skimmer

What else will I need? Does anyone know where I can find information on corals and anemones and how to set up salt water tanks step by step? Thanks so much