Once your blue oscar settles in, watching them is fascinating. They're considered one of the most intelligent species of ...

They are predatory freshwater fish that grow rapidly under ... Overall, the top three best tank mates for an Oscar fish are ...

Oskaloosa High School freshman Oscar Schiferl was fishing for bass at Russell Wildlife Area over the weekend when he found something else instead — a group of freshwater jellyfish.

NEW SHARON, Iowa — Oskaloosa freshman Oscar Schiferl found a freshwater jellyfish while fishing ... either go to the ocean or an aquarium with a fish tank with jellyfish in it..” ...