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Are other fish like my plecostomus as hardy over the winter as my koi? | Decorative Ponds & Water Gardens Q & A

Are other fish like my plecostomus as hardy over the winter as my koi?

Are other fish like my plecostomus as hardy over the winter as my koi?
Chris – Cedar Rapids, IA

With all of our talk about koi and goldfish in our pond blogs you may feel that your fish are not being properly represented. That being said, we will speak less in generalities today and focus on some other, more specific, types of fish that need a little more wintertime TLC.

It has been mentioned in past blogs that your koi and goldfish fare surprisingly well over the winter. With a little help from wheat-germ based fish food like Pond Logic® Spring and Fall and an Aeration System or De-Icer, your fish will have a successful and trouble free winter rest and be ready for action come springtime. Common goldfish like Sarassa and Shubunkins are types of winter hardy fish that can be left outside with your koi.

Other types of fish like Plecostomus, Oranda, Telescope Goldfish and Black Moors do not fare as well and will most likely benefit from being over-wintered indoors. Refer to our past Blog on how to bring your water garden inside for the winter, and for pointers on indoor ponding and relocating your pond hardware.

Depending on the layout of your pond and the average winter temperatures where you live, you may have to bring all of your fish in, or you may be spared from having to relocate them at all. Your pond should ideally be around 24” deep to protect your fish from exposure to the elements outside of their pond environment in cases of both extreme heat and cold. If you experience extremely cold winters in your area there is still a chance of the pond freezing through or the remaining water being too cold. Always keep a Pond Themometer on hand and keep track of water temperatures when deciding to switch fish foods or to verify if it is time to bring your fish indoors. If you live in a warmer climate you may never experience ice on your pond or even frost and therefore have no need to worry about your fish becoming potential ice cubes.

Pond Talk: Do you keep fish in your pond that need special attention during the winter months?

Manage your pond's water temperature easlily

Telling the Difference Between Koi & Goldfish – Water Garden & Feature Q & A

Picture of Koi & Goldfish.

Water Gardens & Features Q & A

Q: I have many different types of fish in my water garden. Most were given to me by my friends. I think they are koi but how can I tell the difference between a koi and goldfish? – Troy of Kansas

A: I remember when I first got into water gardening not only did I not know what the heck a water garden was, but pretty much every koi or goldfish I saw in a water garden was a goldfish to me. So how do you tell the difference? Is it by size? shape? Hopefully the following will be able to help you become a basic koi and
goldfish identifier!

Koi and Goldfish are related but not closely. Colors, patterns and body structure are the most distinctive differences between the two fish types.

Colors & Patterns: Did you know that koi varities are named by their color patterns?

Here are some of the most common koi varieties. See the pictures to the left to help identify them:

  • Kohaku, white koi with red patterns;
  • Sanke, white koi with red and small black “stepping stone” patterns;
  • Showa White, red and black patterns fit together;
  • Bekko Solid color koi with black spots;
  • Ogon Solid color in with regular or metallic scales just to name a few.

Just like koi there are many varieties of goldfish. Common goldfish found in water gardens are:

  • Sarassa, red and white patterns;
  • Shubunkin, “Calico colored” bluish tint with red and black spots;
  • Commons, Orange, yellow, red, brown, or black

Body Structure: A koi’s body is tapered at each end with pointy noses, barbells/whiskers like a catfish and flat bellies. Koi fins can be well defined (called standard koi by retailers) or long fins (called butterfly koi) shown in the pictures on the left. Scale quantity and placement may vary on a koi as well. Some koi have scales on just a few parts of their body while some may have no true scales at all.

Goldfish tend to be more rounded with a blunt nose and do not have barbells. Goldfish may also have butterfly fins or fan tails. Fan tail fish have divided tail fins that form a triangle shape or fan shape when viewed from above. Scales on a goldfish are more evenly distributed and located all over the fish.

If you would like to know more information about these and other fish types check out the available Reference Books. It’ll make you an expert in no time!

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