Plesiotrgyon Iwamae
Common Names: Antenna River Stingray, Long-Tailed River Ray
Distribution: Ecuador to Belém, Brazil, in the Napo, Solimões, Amazonas and Pará rivers.
Maximum Size (Disc Width): appx. 36"+
Juvenile Tank Footprint: 96x24"
Adult Tank Footprint: 96"x48"+
Feeding Habits: P. Iwamae tend to be very picky eaters. They have tiny mouths and have a hard time weaning to prepared foods. They prefer ghost shrimp and live black worms. Large specimens can be taught to eat prepared seafood after some time in captivity. Malnourishment in Antenna rays is common due to feeding habits and competition.
Info: P. Iwamae is considered one of the 'small-eyed' rays, not in the Potamotrygon Family. However, they are sometimes found in the aquarium trade. They are an ambush predator ray, and are much less active than Potamotrygon. They can be bullied and out competed for food in a community environment. Their elongated tails are susceptible to nipping and damage, if not already previously damaged from shipping. They do best in large aquaria with no tankmates.
Variants: Black Tailed Antenna Ray
Synonyms: None.