I found this site to be very helpful before going out and getting fish for a new tank. I also "adopted" fish from a co-worker who could no longer care for them. They are freshwater tropical. They are grayish in color... with a black fin on top....almost 2 inches long....and their most stand out feature is a red dot on either side of their face. I cannot find this fish anywhere on the internet and I would really like to know what they are. can anyone help???