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 ...
The common zebra danio is a mundane, brownish, tropical freshwater fish commonly bought by folks just starting an aquarium. But a little genetic tweaking and bio-engineering is making the humble zebra ...
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