Why do koi fish swim around each other?

Bored or Stressed Koi At some point, the fish will become afraid of shadows, and they may swim around in what looks like chasing but is actually frantic behavior. Stress from poor water quality is also a trigger for breeding. Sounds strange but it’s true. When stressed, all animals have a higher reproduction rate.

Why is my koi fish swimming fast?

Fish Swimming Erratically: If your fish is swimming erratically, he could just be playing or exercising. If your fish does it this consistently and seems unhealthy, the cause may be poor water quality. One common cause is improper water temperature.

Why are my pond fish swimming fast?

If this swimming behaviour persists, it could be due to poor water quality. Some causes of this poor water quality can be incorrect pH levels, ammonia build-up, high amounts of nitrates or nitrites, or temperature changes. If so, this erratic swimming behaviour could be a sign of an external parasite.

Why are my koi fish swimming around in the pond?

If they are speeding around the pond or acting sluggish, they may be sick. If their once-graceful swimming is now clumsy and uncoordinated, they may be under the weather. Look into these odd behaviors in our articles on koi care, koi fish diseases, and performing check-ups. An isolated koi may be sheltering itself from predators.

How long does it take for Koi to perk up after correcting water?

This time, however, after you correct the water quality problem, all the fish or remaining fish survive. A few days after correcting the water they start to perk up some and act better. At this point you may think all is well and pat yourself on the back for a job well done! Now two to three weeks passes after the initial problem.

What should I do if my koi fish is not eating?

If the pond is very deep with little surface area, enough oxygen may not be entering and circulating through the water. You may want to consider expanding the pond or even installing a waterfall or fountain to naturally aerate the water. Oxygenating pond plants will also naturally add more oxygen to the water.

Is there a way to diagnose Koi behavior?

Diagnosing symptoms of any kind requires a bit of detective work. This is especially true, however, in the case of reading body language/behavioral symptoms. As stated above, this is where one or more fish exhibit some sort of abnormal behavior. No one knows your fish and how they normally act better than you.

If they are speeding around the pond or acting sluggish, they may be sick. If their once-graceful swimming is now clumsy and uncoordinated, they may be under the weather. Look into these odd behaviors in our articles on koi care, koi fish diseases, and performing check-ups. An isolated koi may be sheltering itself from predators.

What should I do if my Koi is fighting?

It’s also good to know that when the female koi gets rushed into the side of the pond, the shallows, or the rocks, she may endure some abrasion of her face and/or flanks. These will quickly heal under two conditions: Be alert to the number of females in your pond. Ideally, there should be about two males to every female.

How long does it take for a Koi to spawn under water?

When you experience spawning in your pond and worry about the female, keep in mind that rocks under water are not abrasive! Give any rock three weeks under water and, unless it’s a foamy piece of lava rock, it’s going to be slick.

Why does my Koi keep flashing and scratching?

Typically in just 2-3 minutes after release, the flashing should subside. If your Koi haven’t recently been shipped, are settled into your pond or tank, and are still flashing, scratching or scraping, it is likely a parasite issue. Parasites can happen in any pond, even if new fish have not been added lately.