This freshwater dips are effective for a few parasites such as Amyloodinium and turbellarian flatworms. They are generally not effective for Marine "Ich".

The dip should be performed in a bowl or dish, just deep enough for the fish. Distilled, Reverse Osmosis or Reverse Osmosis/Deionised water should be used. It is a good idea to aerate the water for 30 minutes or so to ensure it has sufficient oxygen. Some processed water can be a little low on oxygen. The temperature of the freshwater should be as close as possible to the temperature of the tank water. The pH of the freshwater should be as close as possible to the pH of the tank water. Add a small amount of baking soda (around half a teaspoon) to the water and mix well. This will add some bicarbonate and carbonate to the water which will help with the pH.

Place the fish in the freshwater for around 3 minutes. Make sure the fish does not get too stressed and if it shows signs of extreme stress, remove it immediately. After 3 minutes put the fish back into the tank or into a quarantine tank if you have one.

For fish with Amyloodinium, the freshwater dips will only provide a temporary solution and treatment with Cupramine in a separate treatment tank is recommended. For fish with turbellaria (AKA "Black Ich"), the freshwater dip should be repeated twice at 3 day intervals.


Last updated: May 8, 2004