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hammer coral flow

  1. General Reef Discussion
    This goes for my whole tank i guess- how do i know what needs good flow on it? I have a 28 gallon tank. A koralia 1 and 2 for powerheads. The guy who owned this tank before me had one crappy little powerhead. Now I have 2- a koralia 1 across the back of my tank that hits my hammer coral, and...
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