Koi Health

The Five Most Common Causes of Sick Koi Every day I receive many requests from koi pond hobbyist across the country for help with their sick koi. I would like to share with you the top five most common causes of sick koi. 1. Poor Pond Water Quality: 70% of all koi sickness is caused from poor pond water quality • Filter not large enough for Read more...

Koi pond algaeWhen you see a nice carpet of green algae growing on the rocks and sides of your koi pond, Don’t Panic!! This is Mother Nature’s way of showing you that your koi pond is healthy. Green Algae is not your enemy, it’s your partner in keeping your koi and koi pond healthy. The Benefits of Green Algae in your koi pond: Question: Read more...

Water changes are simply the removal of some old pond water, and the replacement of that old pond water with new water. It sounds so simple but there are problems, nationwide. First, tap water can be chlorinated. Second, a lot of pond keepers don’t do water changes, at all. Thirdly, failure to do pond water changes allows the accumulation of Read more...

Every year fish in “cold climate” ponds struggle through extreme stressand, in some cases, die due to “Aeromonas Alley”. What is “Aeromonas Alley”?“Aeromonas Alley” is defined as when your pond water temperature ranges between 42° F and 62° F. Between these temperatures, the deadly “Aeromonas/Pseudomonas” (AP) bacteria grow Read more...

Fin & Tail Rot are a bacterial infection caused by predator type, life threatening bacteria such asAeromonas, Pseudomonas or Flexibacter that are present in great numbers in every pond fish and koi pond. These bacteria take advantage of stressed koi and pond fish. It is not uncommon for secondary infections to accrue such as fungal Read more...

Koi Fish Slime Coat A good healthy “slime coat” is vital to the health of your Koi Fish! The slime coat covers the entire body of your koi fish acting as a “Suit of Armor”. The slime coat shields your koi fish from the deadly bacteria such as the Aeromonas/Pseudomonas in all koi fish ponds. Any damage to your koi fish’s slime Read more...

We are grateful to the dedicated professors and researchers at our universities for their contributions to aquaculture. Because of their hard work and attention to detail, they have given us the information we need to keep our koi ponds and pond fish healthy, so we can enjoy the wonderful past time of pond keeping. Catastrophic Oxygen Depletion Read more...

Testing your pond water In general, everything you should know about your pond water is available in some sort of simple pond test kit. Most kits are very easy to run. You can buy these test kits at your local shop or online. Run them at least weekly during the first part of pond opening but monthly or more during the season. If fish ever get Read more...

What are the two life supporting elements in your koi pond that can be related to your home? A home without a solid foundation will fall. Your koi pond water pH will fall without a solid foundation of carbonates (KH). Good koi care means keeping the (KH) at a safe level in your koi pond. A safe KH (carbonate hardness) reading would be 140 to 180 Read more...

Proper winter pond care and preparing your koi pond fish for winter About thirty to sixty days BEFORE the temperature of your koi pond water drops below 65 degrees is the best time to treat your koi pond fish for flukes with Aqua Prazi and a good medicated fish food like Medi Koi for ten days. This treatment will insure your koi pond Read more...