Personally, I don't like it. I agree with guppy - fish are living things and shouldn't be used as casual decoration. While I don't think the lights would necessarily 'hurt' the beta (although it might annoy and stress them), I believe they deserve a filter and heater, just as you would do for other fish. They really get the short end of the stick just because they have the ability to breathe air. You could probably get a 2.5gal for cheaper then that novelty item.