Black tetra are sometimes referred to as the petticoat tetra, black widow tetra, blackamoor, black skirt tetra, and high-fin black skirt tetra. They are a freshwater fish, and are a unique addition to aquariums.

Black tetra have the iconic tetragonal shape with a significantly tall front and shrinks at the end of the body towards the tail.

Black tetras belong to the family of Characidae, who are famous for being colorful and bright. But these fish are darker in appearance compared to the others and stand out extremely beautiful in a well-maintained aquarium.

Here are a few interesting facts about Black Tetras.

• Black tetras are omnivores, which mean that they eat worms, small crustaceans, and insects.

• They can grow to be approximately 3 inches long.

• An average size of a litter of black tetras is 1,000.

• Black tetra teeth are minute and sharply placed in a row, they are aggressive predators and will eat anything that fits in their mouth.

These little triangular cuties are available from the Living Science Material Center CO-OP page to add to your classroom aquarium.