There are many things to consider before you get a pet saltwater fish. Fish tank. Also called marine aquariums, saltwater fish tanks take more care than freshwater tanks because they are considered an ...

A saltwater aquarium can be a dramatic addition to any room. Filled with exotic (and expensive) fish, it’s visually appealing and a great conversation piece. But it isn’t exactly easy to care for.

Setting up a home aquarium can be a rewarding experience, but one of the first and most crucial decisions you'll need to make ...

Some fish species can live in both freshwater and saltwater. These species are called euryhaline fish. However, most fish species can only survive in one or the other based on their salinity tolerance ...

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Editor's note, June 5, 2018: The government rejected the petition in the summer of 2016, in part because the cyanide test it called for had not been independently validated. A study published in May ...