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Originally Posted by leveldrummer
strangly enough, i know lots and lots of people that dont do water changes on their reefs, the nitrogen cycle actually is completed in a reef system if you have a deep sand bed, and good rock to provide anaerobic bacteria to do their job. all you have to do is add trace elements and top off water if its set up right. i dont trust this method at all, but it works for many people i know.
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I ran my 125 gallon in the H.A.N.D.Y. (tweeked it a bit) method for nearly 10+ years without any water change. Topped the evap with R/O water but near the last year just tap water with NovAqua (since I was just rock farming by then). But the customer you had PetMax wasn't the learned folk with questions like "how would she put the salt back in afterwards.".