Demon Eartheater Satanoperca (prev. Geophagus) jurupari

Eartheater (Earth-eater) cichlids are named after the way they suck mud or sand into their extendable mouth before filtering it for small invertebrates and detritus to eat and expelling the residue.

The Demon Eartheater is native to calm, slow-moving water around estuaries and swamps of the Amazon River Basin. They can reach a length of over 18cm.

The name jurupari means demon in the native Tupi language, so the fish has "Satan" or "demon" 3 times in its names. However S. daemon is the Three-spot Eartheater. They are not aggressive unless breeding. They can show faint bars when stressed.

Parents carry their fertilised eggs in their mouths to protect them until they hatch. The hatchlings also return to their parents' mouths if threatened.