Article 3 - Fish
Pond Disease Considerations
Fish Ponds & Disease
One of the most important things in keeping your fish pond / Koi
pond and your fish healthy is understanding pathogenic bacteria.
There are a wide variety of pathogenic bacteria that can infect
your fish pond / Koi pond, regardless of the Koi pond filters, pond
filters or any fish pond filter you might use.
By far the most common
are Aeromonas and Pseudomonas. These two bacteria kill more Koi
each year than all the other pathogens combined. Understanding how
these pathogens live, eat and attack your Koi in the Koi pond /
fish pond is vital to controlling them.
Aeromonas and Pseudomonas cause ulcers (also known as "hole
in the side disease"), fin rot, mouth rot and tail rot to the
fish in your fish pond / Koi pond. If left untreated the damage
they inflict will eventually kill the fish in your Koi ponds / fish
Many hobbyists believe that their fish ponds / Koi ponds
do not have either of these bacteria when the fish in their fish
ponds are not currently experiencing any of the above symptoms.
This simply is not true. Aeromonas and/or Pseudomonas exist in almost
every fish pond / Koi pond the world.
Koi have a defense mechanism
that helps protect them against these bacteria. This defense is
made up of primarily their slime coat and their immune system. It
is important not to have a false sense of security because all the
fish in your fish ponds / Koi ponds appear healthy. This can change
quickly. The big question is: How much Aeromonas and Pseudomonas
can a Koi be exposed to without getting sick?
In 2000 when Lymnozyme was first introduced as pond supplies to
the Koi hobby, many hobbyists and dealers conducted their own tests
to verify Lymnozyme did what it claimed. Conducting these tests
were relatively simple. A sample of fish pond / Koi pond water prior
to dosing with Lymnozyme was sent to a lab to determine how much
Aeromonas and Pseudomonas was present.
The fish pond / Koi pond
was then treated with the five initial treatments of Lymnozyme.
Once these treatments were completed, another fish pond water sample
was sent to the lab for testing.