I think, perhaps, the question was phrased slightly wrong, as it could be misread as implying that bettas should exclusively be kept in bowls, or exclusively in tanks.
I think bettas
may be kept in bowls, but only with proper care. If a person is irresponsible to any degree, they really should put their betta into a larger tank, as 1G is not forgiving of hangovers, laziness, exhaustion, or forgetfulness. You need to be diligent of their care. Larger tanks are definately easier care.
As far as the betta's "natural" behavior, or comfort goes.
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Dude, bettas are so wildly different, betta to betta. I could flay you with one anecdote after another, and I could link you to one after another. A story about a fish who loved a 50g and another fish who loved a
.5g does not evidence make.
edit: Just a question, why didn't you make this an actual poll? And just an opinion: This brawl has been "put to bed" many times over inside the single year I've been here, I doubt it'll end just because someone tosses their hands into the air and says, "That's final!"
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