Thread: Nitrate issues
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Old 01/08/2008, 02:05 AM   #8
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Originally posted by Kannin
So... are you saying that I could set up a new tank with say, 100 gallons of newly mixed water with no sand or rocks and drop fish in it and they would be fine?
That's not what he's saying at all. If you have established sand and rock that already have all of the ammonia and nitrite converting bacteria living in it, then sure you can do a very big water change so long as the rock and sand aren't out of water for too long. There is an insignificant amount of free floating bacteria in the water, so taking a lot out won't do much unless you mess with something else. You do have to be careful with matching the parameters of the new water to the old though, as a lot of saltwater animals are sensitive to that.

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