04-28-2013, 02:45 PM
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I don't think it's off topic, because the topic is keeping a betta in a community. Like I mentioned in my first post, the larger the tank, the better the chances of success. People often want to make their 10 gallon tank into a betta community, which is really not a good idea. I certainly wouldn't try it in any LESS, but a 10 is really small. Small for the betta to share, and small for the community fish in general. I don't think a 10 is a good community tank, with or without a betta. In my experience, fish are more apt to nip when they are cramped for space.
I generally don't like providing the "minimum". Like you said, keeping them in any sized tank is ALREADY a minimum....so keeping them in a minimum tank is giving them the smallest of the small. Too, this goes hand in hand with minimum school sizes. My viewpoint is different than most though - I don't directly care about the fish; I care about my enjoyment in watching them. I don't feed them the best food so that they can eat the best food, I do it so that they will look their best. I provide them with large tanks so that I can watch them swim, not because I care about stunting them. I provide them with larger schools because I like seeing a larger group of fish. Tying this back to the topic of the thread - bettas are beautiful fish, which is mostly tied to their fins. I would not want to keep a betta in a situation where it's fins are all chewed up, because that's not attractive. In a larger tank, this is less likely to be the outcome. But as I said, there are no guarantees.