Sorry for asking so many questions I underestimated how much there was to learn about saltwater but this should be the last of my questions. Anyways my plan for the tank is some dry rock that I will hopefully add some life to, a small filter until at least the rocks are going for the cycle. I was wondering about what I could even stock in a 10 gallon, maybe a pair of clowns? As previously stated I am a complete noob to saltwater and don't know much about the fish so any suggestions that would be easy to care for would be appreciated, also the more common they are the better. And water changes in saltwater are of course a bit more difficult than freshwater having to match the salinity and all that jazz, but how often are saltwater water changes needed, and in what percents? How much does a refugium help with the water quality? I know a refugium isn't needed in this size of a tank but I would like to know my options and how it would affect my tank.