Satanoperca daemon (Demon Eartheater)

The Satanoperca daemon, or Demon Eartheater, is a peaceful, South American cichlid known for its silvery-green body with iridescent scales, three dark spots, and distinctive substrate-sifting behavior, where it scoops sand to find food, making it a fascinating but demanding aquarium fish that needs large tanks, soft acidic water, and groups to thrive.