I am new to salt water tanks. Have had my first one for a bit over a month. My friend gave me her 55 gallon when she upgraded to an 80 gallon she bought with fish. She gave me the fish. The fish are 2 false percula clowns, 2 yellow-tail blue damsels, 2 pajama cardinals, 5 green chromis, a mystery damsel, 1 heniochus butterfly, 1 foxface, 1 coral beauty dwarf angel, 1 dragon wrasse, one 4-striped damsel, and 2 hermit crabs (shells about 2 inches diamter). Things are going good in the tank now. The place where I can get saltwater fish locally got in a purple tile goby
that I absolutely love. Would it get along with everything in my tank or is it not a good idea? Thank you. Also, attached is a picture of my "mystery" damsel. Can anyone ID it for me? Most of the damsels that are shaped like mine are much more brightly colored than this one is.