I had a saltwater tank running up until a year ago. I had a maroon clownfish, yellow tailed damsel, some shrimp, crabs, snails, and at one point a blue hippo tang (Dory) for over two years. I find saltwater tanks cleaner than freshwater tanks and the vibe they give off is also better for me. The only downside is that they are way more expensive, and thats why i haven't had any fish for about a year.