Credit: Getty Images Goldfish thrive in water with a pH range between 7.0 and 8.4. Maintaining this stable pH is important. Fluctuations can stress your fish, especially if sudden, and increase ...

Did you know that your pet goldfish could be an invasive species? That's right. Goldie, Bubbles, and all your other adorable pet goldfish can be incredibly harmful to Tennessee ecosystems.

It’s always the simplest, most lovable snacks that stand the test of time, and that’s why Goldfish is still around. Most of us can hardly resist a handful of those cheddary, smiley fellows.

LOUISVILLE, Ky. (WDRB) -- A koi and goldfish show will return to Louisville next month. The Greater Louisville Koi and Goldfish Society will host its 28th annual Koi & Goldfish Show from May 23-25.

The very goldfish you often see swimming around in fishbowls and small aquariums (Carassius auratus) can grow to enormous sizes when released into the wild — topping out at a maximum length of ...

Corey Ketchum of the U.S. Fish and Wildlife service holds a giant goldfish found during a survey in Presque Isle, Pennsylvania. The service then posted a warning about releasing petstore goldfish ...

Now, we’re begging you to stop releasing pet goldfish into local waterways. The seemingly benign and tiny household pets can grow to gargantuan sizes, like the ones the United States Fish ...

A massive "megalodon" of a goldfish caught in Presque Isle, Pennsylvania, is a good reminder of why people shouldn't release their pets into the wild, the U.S. Fish and Wildlife Service says.

Gigantic goldfish wreaking havoc in local lakes may sound like something out of a throwback sci-fi flick, but it's all very real. The U.S. Fish and Wildlife Service is sharing pics of “massive ...

March 3 (UPI) --The U.S. Fish and Wildlife service is reminding pet owners not to release their goldfish into waterways after researchers in Pennsylvania found a massive "megalodon." The USFWS ...

Thinking about letting your pet goldfish run wild and free in the Pennsylvania rivers and streams? The U.S. Fish and Wildlife Service (USFWS) would have you reconsider that idea. In a Feb. 25 post ...