Opinion on the matter vary. personally, I do not mind 1 gallons provided the owner does the required amount of water changes. However, finding a heater is kinda hard. Other then being small, one issue with 1 gallons is finding a heater for it. I have one but only use it for new fish for quarentine. I will say that bettas almost always seem happier in larger tanks..whenever i move them from 3 gallon kritter keepers to a divided 10 gallon - they are more active, build more bubblenests and their colors are much more vibrant.
Last edited by Tikibirds; 09-16-2012 at 08:35 PM.