The Planted Tank Forum - View Single Post - Sick fish, Planted tank, How long should I leave the tank empty to prevent disease?
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Old 05-15-2012, 08:03 PM   #3
Postal Penguin
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Simply adding cycled water to a new tank will do nothing to establish the biofilter in the new tank. Almost no beneficial bacteria are present in the water column. Take some filter media be it a small piece of sponge or a hand-full of bioballs and place them in the new tank and your tank will be instantly cycled.
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