Peaceful tanks look great, but they’re not always the most exciting. Some fish bring a lot more drama, and for hobbyists who ...

Anyone considering a simple aquarium setup should know that every fish needs clean, stable water. Even hardy species need ...

An analysis of marine fossils from the Upper Miocene Chagres Formation in Panama, most belonging to the Myctophidae family, ...

The Mexican tetra lives in freshwater streams and pools from Mexico up into the southern United States. But these fish also live in cave systems in at least 29 separate places in Mexico, where they ...

The United States is the main market for “ornamental” marine fish, those that end up as pets in aquariums. Now, a new study ...

An unusual type of fossilized fish can be found within the limestone of present-day Germany. The Late Jurassic era conditions ...

In a study appearing in Fossil Record, researchers Martin Ebert and Martina Kölbl-Ebert analyzed the remains of a unique ...

A Bolivian killifish believed extinct, Moema claudiae, resurfaced in one vulnerable pond, revealing both a conservation win ...

We have the 5-letter answer for Aquarium fish crossword clue, last seen in the Newsday Crossword November 20, 2025 puzzle. This answer will help you finish the puzzle you’re working on.