I have 3-Satanoperca leucosticta, a pair of Gymnogeophagus rhabdotus, and just sold a pair of Geophagus brazillensis.
Earth eaters are sweet fish, that alot of people haven't caught on about yet.
Oh and Nick i beleive the "Jurapari" is still not a proven species as of yet. Most of what you see labeled as "Jurapari" are probably Satanoperca leucosticta.