I have a 30 gallon saltwater tank. I am looking for the best ideas for set up. I have the Fluval 405 and a good heater. What kind of air flow would you use? Is a protein skimmer required? I am looking to do a fish only tank 2 clowns anemone and a maybe a hippo. What would be the best cleaning crew? how many? Thanks for taking the time to help me out.