Plesiotrygon iwamae is a freshwater stingray, commonly known as the Antenna Ray, they are the only member of the genus Pleisotrygon. They belong to the family Potamotrygonidae and to the class Elasmobranchii, which is what sharks belong to. They get to about 22 inches in length, this does not include the tail. Their distributionis the upper to lower Amazon River basin, from Ecuador to Belém, Brazil, in the Napo, Solimões, Amazonas and Pará rivers.

Antenna rays have smaller mouths than most other rays. Because of this, they feed on black worms, for tubifex worms. When young (under 10 inches) this species has trouble eating even the smallest night crawlers so blood worms would be better. Read the rest of this entry »

Did you know that your goldfish can live for over 10 years? Under the right conditions he can live even longer but most never make it past the first year! If you want your goldfish to live long and healthy lives, you’ve got to provide the proper environment.

It’s a common misconception that a goldfish can live in a tiny bowl. In order for him to survive for any length of time, you’ll need to do frequent water changes and cleanings of the bowl – that’s a lot of work and living in a bowl isn’t much fun so it’s best to keep your fish in a regular tank with a proper filtration system. Read the rest of this entry »