I'm half new to keeping marine fish, I have basic knowledge on how to keep a marine tank but never had my own. I want to keep a small marine tank in my bedroom for something a bit different. I was thinking about having a small reef tank with 1 or 2 dartfish in it but mostly population corals. and a bit of live rock. I was theoretically wanted the tank to slowly pay for its self by fragging corals. any tips on growing coral in one of these tanks by dosing the tank or getting the corals to grow at a good rate?