Acarichthys heckelii
Threadfin SAcara — Photo: By The original uploader was MidgleyDJ at English Wikipedia - Transferred from en.wikipedia to Commons., CC BY-SA 2.5, https://commons.wikimedia.org/w/index.php?curid=1884797
Threadfin Acara
Freshwater
PH range: 7.0 – 7.2; dH range: 5-15. Tropical; 22°C - 25°C
Distribution Amazon River Sth America.
Size: 14.0 cm
Diet: Worms, crustaceans, insects, will take live, flake and pellet foods
http://www.seriouslyfish.com/species/acarichthys-heckelii/