Yellow Watchman Goby and Peppermint Shrimp
 

I have recently added a couple of peppermint shrimp to my tank, which has a YWG. The YWG has decided to adopt one of the shrimp! Very cute. I've never heard of that before. I know the YWG will pair with a pistol shrimp. The YWG has always ignored the cleaner shrimp, so maybe this is natural?

Cool, probably because peppermint and pistol shrimp are similar in size