it reall y gets my goat wen i see bi orbs with fish in as there no good for the fish. i made the mistake of getting one 4years ago. but been on this fishkeeping site i have learned so much on how to keep fish so i got my self bigger tank and got rid of the fish bowl as i call them there horid things and all there gud for is plants and not fish as they have no where to devolop as they grow. even with the bigger fish bowls disgusting and all the fish shops giving out bad advice just to get your cash but in doubt com on here its put me on the road to good fish keeping keep up the gud work my friend FISH LADY many thxs to you and many more