Add Yahoo as a preferred source to see more of our stories on Google. 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 ...

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 ...