I C H
Tiny white dots that can appear on the body, fins, or gills. These
white dots usually look like grains of salt. Ich does not kill
quickly. Fish are usually infected for 5-7 days before they will start
What causes Ich?
Ich is considered the common cold of fish. Just like germs that
make humans sick, parasites are always present to attack fish. In a
healthy situation a fish's normal immune system will protect it
against these attacks.
When your fish becomes stressed its
immune system breaks down and the Ich parasite is able to make your
fish sick. There are 3 common causes of stress for your fish.
1. Ammonia. High ammonia level is the
#1 cause of stress, Ich and death.
2. Temperature change of more than 3
degrees as in transporting the fish. Keeping fish too cold (below 75
degrees) will increase the chances of Ich.
3. Fighting between fish, especially
new fish and old fish will increase the chances of Ich.
Why do new fish get Ich more often?
People usually want to blame the new fish, or say a new fish was
ill. In most cases a new fish will get Ich first because the water in
its new home is different than what it is used to. The older fish in
the tank have a chance to get used to the water as it slowly changes.
If your ammonia goes up 0.2 ppm per day, after a week it would be much
too high. Older fish may not notice this because it was a gradual
change. For new fish they could be going from a low level of ammonia
in the store to a high level in your tank in one day. Also
transporting a fish will put a lot of stress on them, weakening their
How do I treat Ich?
1. To treat Ich effectively you must first get rid of the stress
that caused Ich. Always assume its ammonia until we can rule that out.
The best method is to have your ammonia tested to determine its level.
We will test your ammonia in our store, at no charge, or you can
purchase an ammonia test kit for your home. If you cannot get your
ammonia tested within 24 hours do a 1/3 water change just to be safe.
After we correct the environment we can safely medicate the water.
2. It is best to raise the temperature
to 80-83 degrees. This will make the Ich parasite grow quicker which
will make it more sensitive to medication.
3. Begin treatment with a proven Ich
medication. We recommend Quick Cure.
4. Remove the carbon from your filter.
Carbon will absorb some of the medication so it is best to run your
filter without carbon during this time.
5. Since your fish's natural slime
coating (which it has to protect it) will also protect the Ich, it may
be necessary to continue to treat once the Ich has come off your fish
and returned to your gravel. Treat until you have not seen any dots on
the fish for 48 hours.
6. Do a 50% water change after
medicating. Put your carbon back in the filter. Monitor your fish for
one week. If the dots do not reappear it is safe to add fish again.
1. If your fish are very lethargic or
breathing heavily, do a 1/3 water change and have us test your water
2. Certain fish are more susceptible to Ich: Neons, Head 'n Tail Lite
Tetras, Clown Loaches, etc.
3. Ich takes about 7 days to kill your
fish. It is easy to cure if you look out for it, find the cause, and