These obviously negatively impact water quality, and can cause all manner of health issues in your koi. Similarly, fertilizers and grass clippings are also likely to wind up in your pond, and can lead to nutrient overloads that create a perfect breeding ground for bacteria, fungi, and algae that can then result in illnesses such as ich developing.
Whatever the cause of koi flashing, there are ways to remedy it and prevent it from occurring again. Water quality should be tested daily, preferably at the same time each day to ensure accurate results. You could even test multiple times per day, if you strongly suspect that water quality is the culprit and want to have readings that reflect variations that occur throughout the day as lighting and temperature are likely to shift.
Make sure that you are treating your pond as needed to maintain proper pH, hardness , and nutrient levels while minimizing the presence of harmful compounds like ammonia and nitrates. This one goes hand-in-hand with water quality. Extra aeration will keep water moving, lessening the likelihood of algae, parasites, and bacteria being able to establish and reproduce, and will also help to mix water so that temperatures and oxygen levels remain constant throughout. Aeration can be achieved with the use of electric air pumps , water falls or fountains.
Treating your pond for parasites will, of course, rid the water and your fish of most parasites. Aqua Prazi in particular is quite safe to use if parasites are the suspected culprit, and very effective for killing off parasitic flukes and worms.
Stronger treatments, such as Chloramine-T , are very effective but potent and reactive, requiring exact dosing. Therefore, brawnier chemicals like Chloramine should only be used if parasites are for sure present, and as a last resort as the wrong dosage or even certain water parameters can render the treatment toxic to your fish.
Pond equipment should be checked regularly to ensure proper functioning, as well as to safeguard against potential voltage leaks into the water. If you suspect voltage leaking to be an issue, you can test for this using a voltage meter.
As mentioned above, smaller water changes conducted daily or weekly are less likely to stress your fish. Also, chlorine is incredibly harmful to koi and all fish , potentially resulting in chemical burns and removing the protective slime layer from their scales.
Without this slime layer, koi are much more susceptible to infections and disease. Always make sure to dechlorinate any water added to your pond; this can be done easily with a carbon-filter hose attachment pictured! Can you check out a microscope on loan for an evening? Every single fish flashed? That's a huge red flag. Don't ignore it! This is a good chance to fix your problem before it gets bigger. You really need to come up with a microscope. You could be on your way to a fix in no time at all.
No, not really. They might become less active, but it's like asking if your cold goes away when you go to sleep.
It might not bother you as much, but it's still there, and it will be there when you wake up. You're doing the right thing here! You've quarantined the fish, they're in a small, treatable system, and you are seeing problems.
Don't give up now! Now is the time to stomp out the problem. I hate to see someone snatch defeat from the jaws of victory! Have no idea what the cause of flashing is in this case, but I can confirm that many of my koi will flash shortly after eating.
When viewing my underwater camera, they often rub their gill plate areas on the bottom and sides of the pond. I never noticed it before I had the camera, perhaps because when I'm at pondside because they are expecting more food and don't want to miss out. I think Richard's explanation is logical because I have also seen particulate matter exiting their gills as they eat. I don't think he meant "dust" as a scientific term, but it is descriptive and useful in this case.
Again, not saying that is the cause of flashing in this case Testing for parasites and treating while still in a warm QT is obviously good advice even if it is not the cause of flashing. Hmmm throw a different food in see what happens. All times are GMT The time now is PM. Thank you for choosing the Worldwide Koi Club! Or when the sun is too strong. Even though chlorine is perfectly safe for humans in standard amounts, it can become deadly for fish.
If you have performed your regular partial water changes but forgot to de-chlorinate the fresh water you are putting inside their pond or tank, this may be the reason for seeing them jumping and flashing. Each time that tap water is placed into a fish home, even in the smallest possible amounts, it has to be treated with an apposite de-chlorinator. If this is skipped, water will become a deadly hazard for your fish.
Chlorine may literally cause chemical burns and kill your fish if not treated immediately. Another discomforting reason which may make your koi fish to jump and to flash is pain or irritation.
If your fish are suffering from a disease, which may be caused for multiple reasons, they may be in pain. That means that may start acting erratically out of desperation. Very similarly, if they are affected by a parasite or bacteria, this may cause serious irritation and itchy feelings. In such cases, most of the koi wish will try to alleviate such discomfort by jumping and then by scratching onto rocks or plant surfaces. If your fish are exposed to too much direct sunlight, this may cause skin burns and they may soon start flashing in a desperate attempt to cool down and alleviate the pain.
Sunburns may be extremely dangerous for koi fish and they happen more often than we like to believe they do. Especially when they live into outdoor ponds. However, they are easy to spot as they literally look like burns and can therefore be treated immediately. Now that we have gone through the main reasons which may force your koi fish to jump out of their pond, you should be able to distinguish them and react when needed.
And remember, koi fish are playful creatures, and they may certainly jump out of happiness, too. Hey, I'm Fabian, chief editor at Aquarium Nexus.
I really enjoy the aquarium hobby and love sharing my experience with others. If you have any questions feel free to contact me or leave a comment below. Your email address will not be published. Veterinary Disclaimer: AquariumNexus. The content of this website is not meant to be a substitute for professional medical advice. Please always ask a veterinarian for help regarding your pets.
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