Whether you’re an experienced aquarium keeper or a total novice, one of the first decisions about any freshwater setup will be about the types of aquarium fish you select. Thankfully, this list will ...

Fish rank as the most diverse group of vertebrates in the world. Scientists recognize over 37,000 distinct species, with many more waiting to be discovered. Most fish fall into the ray-finned group of ...

Former Cuban doctor Yodermis Diaz Hernandez makes more money these days raising black soldier flies - whose larvae can be ...

Learn about the average lifespan of betta fish and how to help your betta fish live longer.

More than half of the world's known fish species live in freshwater, according to Kathy Hughes, co-chair of the IUCN freshwater fish specialist group. She said they're integral to the ecosystem.

Find out how to care for the white skirt tetra in your home aquarium. This small fish is an albino variety of the black skirt tetra.

For years, Heinz Machacek has kept records of big freshwater fish on his website. Here are some of the largest freshwater fish that swim.

Parasites in California freshwater fish can cause gastrointestinal problems, weight loss and lethargy.

Scientists just added a large, sucker-mouthed fish to the growing list of centenarian animals that will likely outlive you and me. A new study using bomb radiocarbon dating describes a bigmouth ...

Eating just one portion of freshwater fish — such as trout or carp — could expose people to potentially toxic chemical compounds, according to a new study.

Freshwater fish populations that dwell nearer the poles are outperforming their equatorial counterparts, researchers have found.