Aquarium enthusiasts are often on the lookout for colorful and exciting species that they can raise in their personal tanks. Rainbowfish are a broad category of fish that meet these requirements.

If you're in the throes of setting up a home aquarium, you may be curious about the types of freshwater fish you can keep as a pet. Often the first fish that springs to mind is a goldfish ...

If you grew up in the 1990s, you might remember a children’s book about a fish with beautiful rainbow scales. While the book’s title (The Rainbow Fish, naturally) and plot may be a little ...

The ghost catfish’s see-through body caught the eye of physicist Qibin Zhao when he was in an aquarium store ... change in length as the fish swims, causing the rainbow colors to flicker.

CHEROKEE — Flies swarmed the rotting rainbow trout at Doug Reed II’s ... What happened instead was Tropical Storm Helene’s rains raised and strengthened the adjacent stream.

It's sold around the world as an aquarium fish. Other creatures are also iridescent, creating the shimmering rainbow effect where colors shift as you move. Usually, they have shiny outer surfaces ...

Genoa National Fish Hatchery of Genoa, Wis., stocked more than 15,000 rainbow trout in several waterways throughout the post. USFWS personnel delivered the trout April 23 and 25, said Fort McCoy ...