Quote:
Originally Posted by Jason McK
Sorry but the object of Zeovit is to create an active bacteria culture in your Tank to elliminate nutrients in the system.
The purpose of a UV sterilizer is to kill Bacteria.
Those are the basic functions. they simple can not exist together in the same system.
J
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The amount of bacteria in the water column in negligible compared to the bacteria that colonizes every other surface in the aquarium (think live rock). Hence bacteria on the rock will never be killed by the UV sterilizer.
It's entirely possible and more likely probable that the bacteria that gets added gets a chance (in the hour or so of no UV) to settle on a hard surface and is proliferating and active there.