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#7
01-04-2010, 06:11 PM
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Water current brings food to coral and takes waste away. So yes it feeds the SPS.
The rule of thumb I've read in the past was that 30x/hr is needed to keep SPS. To me this seems like an absolute minimum for Acropora and sufficient for most other types of SPS. Having even more flow will help as coral grow larger and denser and it will also cause many types to grow thicker.
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