Best Betta Tank Ever
Despite other reviews I think this bowl is absolutely perfect. I had a betta live 4 years in this bowl which is remarkably long for a Betta. Easy to do weekly water changes. A heater can be put in this bowl if you desire. They make mini heaters for 2-5 gallon tanks. I don't have a heater and with my thermostat set at 71 degrees in the house the tank stays warm enough and my Betta is happy. I like the fact that it is glass I hate acrylic tanks. Be sure you construct some type of cover for the top as Bettas will jump out of a tank.
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Not for permanent housing...
From personal experience as well as from research I would not keep a Betta in a tank smaller than 3 gallons. Bettas actually don't live their whole lives in small puddles; they live most of their lives in vast rice paddies thousands of gallons of naturally filtrated and aerated water and only live in small puddles of water for 2 to 3 months a year during the dry season.
What's more fancy bettas aren't as hardy as their wild buddies and need more space and stimulation. This 3 liters (I think that was the measurement but either way I've seen these sold at stores and they're far too small) is not what I would keep a Betta in forever; maybe a temporary home as I cleaned his tank or maybe while setting up the real one but that's it.
However this would look awesome with some plants in it! :-D
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