Um... I have about five tanks running, currently. I have five or six betta bowls, a pond. In the aquariums I have.... bettas (breeding tank(s)), guppies, tiger barbs, bleeding heart tetras, & albino barbs. I have a total of four bettas currently, seeing how I got BACK INTO them recently. I got really annoyed by my last set, and gave them away. I have about four koi, one of which is a butterfly, in my pond, along with some goldfish.