I am totally green when it comes to saltwater tanks. Freshwater i have had plenty of, but I was just given a 12 g nano cube with a 24 compact flourescent light it has crushed coral around 3 inches thick 1 live rock and a damsel that isnt doing very well. the tank was 1/3 full of water then i pre mixed gallons of dechlorinated water with 1/2 cup of istant ocean. I have tested nitrate, nitrite, ph, and alkalinity all checked out but the hydrometer i got must go through 24 hour set up process. does everything soubd good so far? What I really want to know is what kind of things I can put in it due to the 24 watt compact. Can I do a coral tank with this light. my wife wants the finding nemo of course but i also want coral and invertabrates. Any suggestions? Thanks for your time in advance