U know though, not only is he stupid for actually putting these fish in small bowls like this, but what i really can't believe is that if he says only to change once every 3 to 4 weeks, that would be the rankest smelling water ever. i mean if only to keep your house from smelling like rot, you have to change the water. i just can't imagine keeping my fish in the same water for more then a week much less 3 to 4. after that long you won't be able to tell that anything was in it except roting food. I mean, even on our the little cups bettas come in at my Wal-mart says to change the water at least once a week. like those t-shirts day, "god must love stupid people, he sure did make a lot of them."