With their long delicate fins, betta fish need a tank with low water flow and lots of places to hang out and nap. A 5-gallon tank is ideal for most betta fish, and they should never share their tank ...

An aquarium hobby can take up a lot of space, but small and nano aquariums offer options that can work for a small space. In this guide, we’ll show you exactly what you need to keep your fish healthy ...