I have two hydor koralias. I believe they are 6's or 7's. Pretty strong. Like 3000gph im looking to get rid of. They are still running in my tank, just need more flow.
I have two hydor koralias. I believe they are 6's or 7's. Pretty strong. Like 3000gph im looking to get rid of. They are still running in my tank, just need more flow.
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