Top 5 Most Common Problems with Koi Ponds

Koi make up the majority of our veterinary practice, and in seeing so many cases, some common themes occur. Don’t make the same mistakes with your fish!

  1. Not Checking Your Fish Daily – We know in the winter, when metabolisms are quiet, your fish are not very entertaining. However, even in the slower, winter months, small problems can start to grow very quickly, especially when the weather starts to warm. Even though you may not be feeding your fish daily, it is critical to check on all the fish DAILY to make sure they are doing okay.
  2. Not Testing Your Water Quality – This rule does not apply to fish tanks alone. Koi ponds can suffer the same New Pond and Old Pond syndromes and a whole host of other issues. Water quality is the #1 important factor in fish health and is the leading cause of secondary disease. Buy a test kit, learn how to use it, and keep track of how your pond changes with the seasons. Learn more about water quality here.
  3. Adding New Fish without Quarantine – This year will have a significant increase in Koi Herpes Virus cases. Protect your fish by quarantining ALL NEW FISH for at least 4-6 weeks. DO NOT expect your dealer/vendor to do this for you. Most parasite outbreaks come from new fish being added to a pond without quarantining first. Watch our Koi Herpes Virus webinar here.
  4. Feeding an Appropriate Diet – There are many, many, many different koi foods available and they are NOT all created equal. Read through the ingredient list carefully and understand what all the different nutrition labels mean. Watch our helpful webinar so you can make the best choice for your fish. Maintenance, Growth, Color-Enhancing, etc do NOT mean the same thing throughout the different brands. And “nucleotides” is a completely idiotic label. Do you know what nucleotides are?
  5. Keeping Up with Your Maintenance – In winter, we know things slow down and maintenance routines can relax. However, this is not an excuse to completely ignore your pond! You should at MINIMUM keep up with your backwashes to keep your pressurized bead filters functioning properly and keep your skimmer and matting free of debris. Click here for a complete checklist of pond tasks.

If you have ANY concerns about your koi at ANY time, contact your local aquatic veterinarian. If you are in California or Nevada, call us at (831) 278-1081. We will have our Spring Pond Package ready to roll as soon as spring hits. Schedule your visit today!!

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