Can you keep Oranda goldfish in an outdoor pond?
There are many different types of oranda goldfish. An oranda is a breed of goldfish characterized by a prominent bubble-like 'hood' on the head. The headgrowth or hood (known as wen or crown) may be a prominent growth on the top of the head or may encase the entire face except for the eyes and mouth.
Oranda goldfish, like many fancy goldfish will thrive in temperatures above 16 degrees, which makes them unsuitable for ponds during cold autumn and winter seasons. Many aquarists keep fancy goldfish like Oranda's in outdoor or indoor ponds during the summer, and transfer them indoors to an aquarium during the winter months.