0
He's really pretty... Definitely a scat. My LFS has them now and then, and keeps them in a nice brakish water sale tank. I've never seen them pick on the other brakish fish in there, though.
That one looks like he has ich. Might want to let them know.
I hate hearing people say "it's only a $3/$5/$1 fish/shrimp, so it's ok if it dies, I can just get another." It's still an animal! All animals should be treated like they're worth $10,000.
29 sw: Damsel, shrimpgoby, pistol shrimp, waspfish
65 fw: Rummies, glowlight tetras, pencilfish, darters, ottos, f betta, goby, dwarf gourami, ninjas
29 fw: Chili rasboras, pygmy cories, P. Gertrudae