What Is a Celestial Pearl Danio? Danios are tiny fish that live in Southeast Asia. Most prefer small streams. There are at least 25 different species of Danio, and the largest is only about 3 1/2 ...

Move over, Nemo. There's a new star in the fish tank, and this one really shines. The fish, marketed under the trademark name GloFish, are actually zebra danio, an already common pet-trade species.

Mini aquariums (also called “nano aquariums”) generally refer to aquatic set-ups that are less than 10 gallons. They’re ideal for offices or small living spaces, and over time, you can cultivate a ...