Hi, I’m new here having recently come into owning three cold water fish that weren’t being looked after. I’ve rehoused them in a new 25 litre tank. One is a Platy about 1.5 inches long. The other two are from the same species or family, white and their bodies are a lot smaller than the platy but combined with their fins are about the same length. I have no idea what they are and have drawn a blank trying to identify them via google and common fish types etc. I’d really appreciate it if someone can identify them for me .