I just bought a new 100 gallon tank that came with fishes, 2 plecos, 2 convicts, 1 african cichlid, 1 jack, and 1 huge oscar. First I would like to specifically identify this bright yellow cichlid. Next, I noticed a small number of tiny black irregularly shaped dots on him in various places, dorsal fin, under his eye, a couple on his body on each side. Does anyone have any clue what this could be, I'm thinking it is some kind of a parasite, possibly a skin fluke. Oh, I'm not exactly sure if he has teeth, little black ones, or if he also has these dots in his mouth, just inside the upper and lower lips. Everyone else looks pretty good, except the Oscar has definitely had hole-in-the-head previously due to the amount of scarring on the top of its head and it looks like he could possibly be coming down with it again, there are two open holes on the right side of its head. Any suggestions!!??