Oliver Beckert, the designer, needs therapy. I think a tank in a bathroom would have a greater danger of being contaminated from soap, hair spray, etc. I might even understand an aquarium in the bathroom if you had one of those huge ones with a sucken tub,a jaccuzi, and a bunch of plants. A small 3 gal eclipse with a betta might look nice somewhere in the mix, but on the back of the toilet? Nope!