So I need some help, I just decided to start up a saltwater tank. So recently I bought a 100 gallon tank and stand, protein skimmer rated for 125g, and 5 bags of 20# saltwater white sand. My next step is water, lights, and love rock to start the ecosystem. My question is how much live rock do I actually need and I eventually plan on having coral so what light system should I get? Trying to get the best for the money spent but not wanting to spend entirely way too much money on something I won't actually need. And I'd like to make it somewhat of an exotic tank, maybe a fuzzy dwarf or two.. Also looking into maybe getting a stone fish, but I'd also like to have a few mandarins..any suggestions?