My Betta has a 29 gallon planted tank all to himself. I hate the myth that bettas get "lost" or "confused" in a big tank. Everyone said I was crazy to put a tiny fish in such a big tank. This tank is a piece of cake! I'm so under stocked its basically no maintenance and my little King couldn't be happier. Give your betta 5 gallons plus and they will thrive!
Yeah my betta was a rescue from a 1/2 gallon so I panicked and got him a 5 in the 5 I had him with fake plants because I was in a hurry. But when I went into a ten gallon I planted it planted. It took a lot of convincing for my parents (and almost all of my birthday + savings) though but im so glad I did