Just noticed this guy stuck onto the side of my tank. He is very very small and appears to be dark in colour. It does look something like a fry but I'm not convinced. It also looks to have 2 black lines running down its body from head to tail. It does appear to have a tail that it uses like a fish but its ability to grip onto the sides of the tank has me questioning if its a fish. Currently in the tank are mollies, platties, guppies, and zebra danios. A platy and guppie have recently given birth but their babies are much much bigger than this little creature.