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 ...

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 ...