Your main issue with a tank that size will be keeping things stable, especially if you want sps. A big water change will actually cause a quick change in parameters like temp/salinity unless you’re very careful to make sure the new water matches exactly. I’d suggest smaller daily water changes to add up to 10% over the course of a week. With a tank that small it would be super easy. Also, you might want to consider starting with soft corals to see how they do. LPS like acans or trumpets are pretty easy as long as the alk and ca are maintained. I agree with the other posters that there’s not a lot of room for fish. IMO you could only keep very small fish in there, smaller than clownfish. It’s a pretty tank! Keep asking questions here. We all want to help!