Zoa collector has the best price I've seen for the Helfrichi pairs. I would check his site if you are looking for unique. I have a shipment of prince's anthias and another helfrichi coming tomorrow. His fish are very healthy and packaged well. I have 2 porcelain crabs and 2 pom poms. They my favorite. I would take things slow and see exactly what you want before you go to adding. I started with a 15 gallon and went to a 40g in 7 months. My bio load is a lot. But I manage it well. Parameters stay level and fish and coral are healthy.