I have tried many methods to treat marine ich and/or brooklynella with varying levels of success. I have tried chemical products such as Kick Ich, copper based medicines and malachite green based medicines.
I have tried freshwater dips, malachite green dips, garlic and even cleaner shrimp. The only tried and true method I have found thus far is to use a quarantine tank combined with hyposalinity. The following information will show you how to successfully treat marine ich and brooklynella.
Ten steps to successfully treat marine ich and brooklynella with hyposalinity
Step one: set up a quarantine tank. This can be a very simple setup such as a ten gallon tank with a hang on back filter and an airstone.
Step two: Fill the quarantine tank halfway with water from the infected display (or another display tank if you have more than one)
Step three: Add RO/DI freshwater to the quarantine tank to bring the specific gravity to 1.010-1.013. Note: This range is critical and a quality refractometer is preferred over a hydrometer to get an exact reading. Below 1.010 will be dangerous to the health of the fish and over 1.013 will be far less effective.
I have used this method and have never lost a fish. Any other method I have used has resulted in some loss of life.
Can I combine other methods of treatment with hyposalinity?
I have heard of some success with freshwater dips being used in conjunction with hyposalinity but I have never had to use them for successful treatment. The same goes for malachite green dips. I often will use food with garlic in it in conjunction with hyposalinity but I have had success both with it and without it.
Can I move the fish out of the quarantine tank earlier if I have an uninfected display tank available?
Yes, I have moved the fish out of quarantine after 2 weeks of no symptoms. Please make sure that you have properly adjusted the salinity over a period of a week or more to ensure the fish do not encounter salinity shock.
What is the best method to keep my display tank ich free in the future?
Now that you have a quarantine tank set up, make sure to quarantine all new fish and corals. Failure to do so will eventually lead to a reinfection of the main display tank.