I've been doing research for a while now in preparation for the transition of my tank from freshwater planted to saltwater FOWLR in August. My stocking plan right now are just 2 Ocellaris Clownfish (and probably il add a goby or two). I have some questions: 1) Do i need a protein skimmer? (considering the stock I'm planning to have) 2) Can i run a FOWLR without a canister filter? I heard that it would be a nitrate factory, and i also learnt that live rocks does most of the biological and chemical filtration in a FOWLR tank. So i should have it removed, right? But some people tells me not to because it creates flow and circulation in the tank, which is a good thing. But then i could replace it with a few powerhead instead. Im not entirely sure. 3) How good does the tap water quality have to be to make an RO unit unnecessary? 4) Do live rocks need lighting with some blue in it?