so right now i have a 40 gallon acrylic tank and a 10 gallon refugium. in there now are two green chromis and a firefish goby, i want to add two clownfish and im wondering how many more fish i can add.
You would be fine adding two A. ocellaris clowns in there. How many fish can depend on your eventual goals for the tank. If it is a reef tank then fewer is better in my opinion as it makes it easier to maintain the water quality the corals require.