From sigs, I see many more bigger betta tanks than 1 gallons or less is what I mean.There are probably a few hundered betta keeps on this board and Im pretty sure you havent asked all of them, so you cant conclude about what most betta keepers do. Unless you are going to give me a confidence interval or statistic of some sort, that comment is of no use.
And since this will be locked if it continues to go off topic.....DP, I would like your honest opinion on ideal housing for a betta. (tank size, what type of filter, tankmates , etc). Do you think a ghost shrimp can live with a betta (with not filter or aeration)?
IMHO, a single betta should have a 2.5g tank at the absolute minimum, 3-5g is much better. For filtration, any high quality filter that you can get your hands on. Keep in mind you don't want a lot of flow, as most bettas don't enjoy it. Try to get a 5-10g filter for the tank, depending on size. For tankmates, it really depends on the temperament of the betta, but I would avoid other anabantoids, guppies, and other long finned fish. Most small-medium, non-nippy fish are fine as tankmates, as long as the betta is peaceful enough not to attack them (Unlike my 2 boys). I think a ghost shrimp can live with a betta in an unfiltered tank, but I don't think it should be done. All fish deserve filtered, aerated water. The shrimp may also be eaten by the betta, depending on size of shrimp and agressiveness of betta. In a filtered tank, as long as the betta is peaceful with the shrimp and the shrimp doesn't try to eat the bettas tail, go for it .
There you go.