One of the most common questions that people ask when it comes to bettas is, "What's the best betta tank setup?" Alongside food, perhaps the most important factor that affects a betta's well-being is the quality of its water and its tank or aquarium setup. In this lens, I'm going to discuss the importance of having a good tank setup for your pet betta and how you can maintain the health and beauty of your fish by giving the best home he could have.
Size Does Matter
While it's true that bettas can survive regardless of the tank setup (thanks to their labyrinth organ which allows them to breath oxygen even in small bodies of water), size still matters. Most betta experts agree that in order for bettas to live full, quality lives, they have to be housed in tanks no smaller than 2.5 gallons. And with that, I mean housing ONE male betta per tank. Bettas can live an average of 2 years, but I have heard of several accounts of bettas living up to 5 years because they have been kept in large tanks. To give you an idea on the best betta tank setup you can choose from, feel free to read along.
Individual Tank (2.5 to 5 gallons)
I believe, and most betta experts would agree that this is the best tank setup for your betta. Filtered or unfiltered, what makes small individual tanks an excellent choice is that they are easier to clean and maintain. If you wish to place a filtering system, make sure you choose a model that has a flow control. Strong currents from power filters can hinder your betta from building bubble nests (which they love to do!).
Corner filters are also good but stay away from undergravel filters as much as possible especially if you are using a tank smaller than 5 gallons. With undergravel filters, you are required to take everything out of your tank (pebbles, plants, accessories, everything!) every time you need to perform a full water change so it is not advisable.