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Old October 9th, 2014, 11:41 AM   #1
Astchiefy
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Join Date: Jan 2012
Location: BKLYN
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Default Bio - balls in a reef tank

It had been the subject of debate that bio balls are bad for a Saltwater tank. There are many filtration methods used on reef tanks. I still use bio balls. What do you think? Negative / Positive?
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