Can I still add a Flame. I received the credit and would like to try another one. I have had the three Yellow Tangs in there doing well for about 3 weeks now. My plan was to introduce them together but that obviously didn't work. The Tangs are only about 2-3 inches. In order to meet the minimum $79 to use my credit, I'm thinking of adding a Fridmani, Diamond Goby, a few Fighting Conches, and of course the Flame. Is this too much at once? 125g.