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koi fish Free Articles

Koi Pond: Filter vs. Fish

The size of the bio-filter used in a koi pond is in direct proportion to the number of fish per gallon. The more fish, the more waste and the bigger the filter that is needed. Do you really need a filter? Not necessarily on the small ones...

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Feeding Koi Properly

The key to feeding Koi properly is that feeding Koi depends on the season. Actually, to be more specific, feeding Koi depends on the water temperature!

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Koi Pond: Fish or No Fish?

If a pond has a waterfall to aerate the water, fish will produce waste that is broken down by nitrifying bacteria into nitrate nitrogen, and water plants will use the nitrogen and thrive. In turn, the fish eat the algae and small water insects that live on the rocks and plant roots. And those bugs eat other smaller bugs that eat microscopic bugs that eat bad bacteria bugs. This is called the nitrogen cycle. A properly balanced pond like this will pretty much take care of itself...

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Koi Need Great Food To Stay Healthy

Nothing is more relaxing or beautiful to look at than a pond full of gorgeous Koi. All that’s needed to keep these friendly animals happy and healthy is quality Koi Fish Food.

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To Buy Koi or Not To Buy Koi

Interested in Koi fish? I hope you are because they're the most rewarding and unique pets I have ever owned. This article will provide you with information on this great fish.

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Koi Pond & Waterfall: Top 21 Most Asked Questions Answered

Question: What is the ideal depth for a koi pond? Answer: In my experience of over 25 years, 4 to 5 feet is ideal. You need a minimum of 3 feet for koi fish for several reasons. Safety for fish from wading cranes they can't wade in 3 feet of water. Plus the water temperature in shallow ponds fluctuates too much with the changes in ambient temperature. The greater the volume of water, the longer it takes for the temperature to change. Warm water or fluctuating temperatures are unhealthy for fish.

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What to Feed Koi

There will always be different ideas around about what to feed koi but nearly everyone agrees on the basics. This article covers what you need to feed to your koi to keep them healthy and happy.

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Koi Pond: Is pH Important?

Koi Pond: Is pH Important? It can mean the difference between life and death of your koi fish! Generally speaking, alkaline conditions are more common than acidic in koi ponds, especially the newer ones. If the pH remains over 8.5 for any length of time, the koi fish will become stressed or diseased.

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Keep Maintenance Stress Free By Having Koi Supplies On Hand

Learn how to minimize stress by keeping the proper Koi supplies on hand.

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A Koi Pond Water Garden - What do you think of?

What do you think of when you hear this phrase? Koi pond water gardens are becoming affordable for nearly everyone and they don't have to take over the garden.

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Koi Pond: Oxygen Levels

Adequate oxygen is essential for the health and survival of your koi fish and other pond creatures. As pond life utilizes the oxygen content of the water, it needs to be replaced. Oxygen enters the water where these two contact each other – primarily at the koi pond's surface. That is why a waterfall is such a vital adjunct to your water feature.

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How Do I Build A Koi Pond?

If you've seen a water garden, odds are, you've seen koi fish. The challenge is, how to create the perfect ecosystem for your little friends.

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How to Keep Koi Carp

This article gives a quick background and introduction on how to keep Koi Carp Fish.

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How to Choose between Goldfish and KOI

Many people have asked us over the years "Should I add goldfish or KOI (or both) to my pond? The answer is "it ... are better suited to smaller water gardens and ponds, in the 50 - 500 g

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Koi Pond: Biological Filters

Contrary to common belief, biological filters do not process or filter the solid waste of fish in your koi pond. They continue to build up and putrefy, creating a breeding ground for harmful species of heterotrophic bacteria which are pathogenic to koi fish. As stated, the biological filtration process utilizes Nitrosomonas bacteria to break down ammonia into nitrite and nitrobacter, further converting nitrites into nitrates, which is less harmful to koi fish...

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