What's Nishikigoi?

Water Quality?

Copyright by KD Nishikigoi 2010.  All rights reserved.
The following article was brought to you by Dr. Johnson.

I would WAY rather live on the land in air, than be a fish living in water and
there are several reasons.

Diseases don't transmit themselves quite as easily as they do in the water

Fish participate in your ponds water, and it's limited. I participate in an entire
planet's air. Sure, it's not all healthy but it's not like am living in 120 cubic feet
of the same air.

As it were, if you do NOT understand water quality and you cannot test it, your
fish will die sooner or later. SEVENTY percent of fish diseases are directly
tied to water quality and are usually SIMPLE and easily preventable. Let me
give you some examples; fish produce ammonia and it leaks out of fish.
Great! But if it gets high in the water it leaks back in. Then the fish start dying.
Well; if you knew this, and tested the ammonia level, all you'd do is a water
change and poof, fish are better. See?

Koi Pond Water Nitrogen Cycle
When fish pee, and when food decays, toxins are released into the water. All
these toxins are broken down by bacteria. The process is called the Cycle.
This article simply describes the steps, and how each phase matters.

Koi and goldfish hardly pee at all. Their ammonia (waste product not unlike
pee) LEAKS out of their gills. If there's a lot of ammonia in the water, the
fishes' ammonia can't leak out. They die. What IS ammonia and what can we

Ammonia is broken down into Nitrite. Who cares? And Why? Is there a
treatment for Nitrites?

As a long term (ever-ongoing) condition of fish keeping, Nitrates may be the
most important parameter facing the hobbyist. Non toxic? I think not.

All biological processes from plant respiration to fish respiration to
solids-decay will reduce pH and eventually, it sags and falls. PH of under 6.0
can easily kill some pond fish.

Carbonates are a chemical no more complicated than Baking Soda. The
Sodium Bicarb in baking soda STABILIZES pH discussed above. It's easy to
provide and may be a more important number than pH itself, here's why.

Fish need oxygen and have gills to do the amazing job of eeking what little
Oxygen there IS in water, OUT of the water. It's amazing. What's "enough"
oxygen, how can you tell if there's enough and what happens if a system has
enough to sustain life but not enough to make it fruitful?

Carbon Dioxide
When fish "exhale" carbon dioxide is produced. Worse, bacteria in the
environment and even (at night) plants produce it. What does Carbon
Dioxide do to the pH, to the fish and how could we control it's effects?

Hydrogen Sulfide
If you have a pond that has missed a couple years' cleanout, or there's leaves
in your formal pond that have been there a good while, or GOD FORBID you
have deep sand in your pond - it's conceivable that Hydrogen Sulfide is
threatening your fish.

The Significance and Impact of "Big" Water changes
When you change a LOT of water, it can radically change the conditions the
fish are used to. Consider this article before doing a massive waterchange.

Flooming for Better Water Turnover and Aeration
By turning a small pump and aiming it UP you can create a gentle floom of
water on the surface of the pond. Does a better job than an airtsone, but not
as good as spraybars. HOWEVER, spraybars look contrived and awkward.
Learn about flooming.

*brought to you by koivet.com