Originating from South America, the Cardinal Tetras are peaceful and active and are best kept in a shoal of five or more. Mid-water feeders, they are related to the Piranha and has as many teeth!
They can grow to about 2 inches (5cm) in length and are similar in appearance to the neon tetra but their red stripe extends the full length of their body.
They thrive in acid water (pH between 6 and 6.8) with a temperature range of 24 to 28º C.