The Importance of a Quarantine Tank
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The Importance of a Quarantine Tank

The Importance of a Quarantine Tank

Quarantine tanks should be used by all members of the aquarium hobby prior to introducing new fish, but are, unfortunately, used by less than 5% of all aquarium owners. Every time we introduce a new inhabitant into our aquarium we run the risk of disease and parasites. At the same time, new fish are often stressed from transport and relocation and are susceptible to any diseases or parasites present in the new environment. A quarantine tank protects your existing investment while allowing new fish to regain optimum health. A quarantine tank is a vital piece of equipment that should be used by all aquarists.

An Example Quarantine Tank

Why don't people have quarantine tanks?
Most people don't have a quarantine tank because of the extra expense and maintenance that the tank will require. However, a quarantine tank doesn't need to be large or expensive, and in the end it will pay for itself many times over. In fact, once someone gets into the habit of using a quarantine tank, they are so impressed with the benefits and uses that they would never be without one.

What are the benefits of quarantine tanks?
In addition to minimizing the potential spread of infectious disease, quarantine tanks allow the new fish to get adjusted to a new type of water and food. When they are not being used for quarantine, these tanks can also double as treatment tanks. Treating the entire aquarium display for a problem that only infects a few fish is not a good practice. Quarantine tanks allow the infected fish to be safely treated without damaging fragile species or water quality in the main display aquarium. Another use of quarantine tanks is to provide a breeding area for fish, a recovery area for harassed fish, and a place to allow newly hatched fish to safely grow.

What size quarantine tank should I use?
A 29-gallon tank makes an excellent quarantine tank and is perfect for most freshwater and saltwater applications. However, a slightly larger or smaller tank can work as well.

Use our Chlorine Neutrilizer to effectively remove any potential residual chlorine.

What equipment do I need for my quarantine tank?
Most quarantine tanks are set up with lighting, a heater, easy-to-clean rocks, and pvc tubes or plastic plants to provide the fish with much-needed cover. For filtration, a sponge filter works well and the sponge can be colonized with nitrifying bacteria by placing it in the sump of your wet dry filter, or in the main display if a sump isn't available. Make sure to disinfect and rinse well between uses. Most quarantine tanks don't have substrate, making them easier to clean and disinfect.

How do I disinfect my quarantine tank?
Aquariums and equipment can be disinfected between uses with a mild (2-5%) bleach solution. Make sure all traces of bleach are rinsed off before re-using. As an added precaution, use our Chlorine Neutralizer to effectively remove any potential residual chlorine. Drying also kills many but not all aquatic pathogens. Make sure to have a separate siphon for your quarantine tank and disinfect it as well between uses.

How long should I quarantine my fish?
Most hobbyists will keep their fish in quarantine for 2 to 4 weeks. During that time they often treat for parasites with a copper-based treatment for 14-21 days, and only treat for bacterial infections if there are obvious symptoms (ragged fins, red spots, etc.). Make sure to do 10-15% water changes every other day to keep the inhabitants of the quarantine tank healthy.


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