Which 5-gallon fish tank is best? Five-gallon fish tanks are the perfect size for aquarists of all skill levels. They’re small enough for beginners to handle and experiment with yet large enough for ...

Fish tanks are living ecosystems that are beautiful to look at and rewarding to maintain. The hobby can be an expensive one, though, so it's important to understand the requirements of the fish ...

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 ...