Just picked this guy up for my 120. I'd say it's about 5" long. This species is closely related to the Pink-tailed Chalceus. Sorry for the crappy pics but this guy doesn't stay still for long.
Thanks guys! I was a little worried that my Jag might mess him up after adding him to the tank but he could care less. I guess since the Chalceus isn't a cichlid the Jag doesn't see him as a threat.