Quote Originally Posted by Kfamr
Bettas don't really need that much room. Some enjoy larger tanks but a lot thrive in 2+ gallons, so really you could house atleast 15 with splitters in your 30 gallon.

Hence the reason if people have bettas they usually have way more than one.

only getting 2gal is a really crappy life if you ask me.. atleast 10gal would ensure a happy healthy fish.