"Goldfish natively live in ponds, and other slow or still moving bodies of water in depths up to 20 m (65 ft). Their native climate is subtropical to tropical and they live in freshwater with a pH of 6.0–8.0, a water hardness of 5.0–19.0 dGH, and a temperature range of 40 to 106 °F (4 to 41 °C) although they will not survive long at the higher temperatures. They are considered ill-suited even to live in a heated tropical fish tank, as they are used to the greater amount of oxygen in unheated tanks, and some believe that the heat burns them. However, goldfish have been observed living for centuries in outdoor ponds in which the temperature often spikes above 86 °F (30 °C). When found in nature, the goldfish are actually an olive green color.
In the wild, the diet consists of crustaceans, insects, and various plant matter."
From Wikipedia.org
6 comments:
Great post!
Golfish are a coldwater fish able to hibernate in ponds over winter. Most people who have aquariums with goldfish believe that you need a heater. That's not the case at all. Goldfish don't need a heater as you mentioned and do better in colder water with lots of oxygen available.
That's what most people believe and I've been asked about that question about a heater tons of times. Figured I would shed some more light on a great post.
Great goldfish blog! Very well written and informative.
Sincerely,
Jamie Boyle
The Goldfish Guy
To provide the oxygen for the goldfish, just have a waterfall, fountain, etc. - anything where it circulates the water with water having touched the outside. Visit my blog page on our outdoor goldfish pond here: The Traveling Twosome - Goldfish Pond
Hello,
I have a black moor which apparently has an infection on it's tail. It appears to be a cut yet there is a lot of white "thready" stuff around it. I've given amoxicillin for several days and I've changed the filter and water to no avail. Any advice would be appreicated.
Thank you.
Yes Goldfish do prefer to live in colder water. as Louis mentioned a good pond pump for a waterfall and fountain will help add oxygen to the water.
Great blog!
Sincerely,
Koi Fish Expert
It's kind of crazy to think that all goldfish descended from the carp in China. The variety now is quite astonishing.
You make some great points about a goldfish's environment. When it comes to ponds I prefer a waterfall system. It adds a nice natural touch and is enjoyable to listen to.
chinese lionhead goldfish were bred in China to depict the image of the mythical Chinese lion-dog (the shishi, in Japanese legend). ... They were introduced to Japan from China
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