BiOrb Fish Tanks

The BiOrbs are beautiful fishbowls. Aquarium professionals don't like them very much because the filtration is limited and the shape is not ideal for fish. However, being a fish enthusiast myself, I found that adding an air stone, cleaning the tank and changing the water frequently, my fish are thriving and I'm loving it. Be careful not to overstock though. The smaller size is great for a single Betta fish and the large one can keep some Gupies very nicely. I would definitely not recommend it for Goldfish. Mine is a BiOrb Life 60 and I keep 5 zebra Danios in it. Some BiOrb reviews are not so good, but from personal experience, I can say I like it.