Not much to way about this fish. Except that maybe he is a bit of a show off. Of all the places to sucker onto, he chooses the archway glass so that everyone can get a good look at his exquisite underbelly.
When I was a kid, I thought the most interesting thing in a fish tank were the fastidious cleaner fish. I still think that if I had to be a fish, being a cleaner wouldn’t be so bad.
I’m not sure what this fishy creature is, but it doesn’t look like it is cleaning….