NOT TRUE, you absolutely can over-sterilize a REEF tank....
A UV is fine for a FO tank, but it really has no permanent place on a reef
tank.
Instead consider Ozone, it has more benefits, and the more you use it, the
less you need it.
An ultraV sterilizer (especially anything over 8 watts) has way too much kill
power on such a small tank. You'll just wipe out any potential plankton and
microfauna.

  FWIW
            Tom
             Reefgar Coralfarms

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