Cardinal tetras are famous for their glowing blue and bright red stripes that run across their bodies. People often mix them up with neon tetras, but cardinal tetras have a bright red line that goes ...

Choose the Right Tank Size A fish can never be happy when it has restricted space to move. Most individuals have fish in bowls or extremely small tanks, which restrict swimming space and oxygen ...

Tetras are easy to keep, but a few simple tips make a huge difference in their health and color. This video covers filtration ...