For the past two years, I’ve been unhappily cleaning the goldfish bowl for my daughters’ two goldfish, Rocky and Swimmy. I hate the job, but since the fish are the only pets my kids have (both my husband and I have allergies) I grudgingly do it. The other day, I upgraded the fishes’ bowl to a more sophisticated mini aquarium. The aquarium doesn’t have a filter (alas – I wish it did, to spare me some cleaning), but it is equipped with a light and a pump. Since the pump pushes extra air into the tank, I figured that we could squeeze one more pet fish into the tank, especially since my girls Continue reading...