Otocinclus hasemani Fish Profile: Genus Otocinclus Species hasemani Common name Ohrgitter-Harnischwels Origin Southamerica (Brasilien) Tank Size min. 40 - 80 cm Temperature 22 - 25 °C pH Value 5.0 - 7.0 Fish Size 3-4 cm Food Omnivore, Plant food Care Sociable, Group