nah, as long as you start with a relatively clean system, i dont see the need for a filter.
"UV neuters the microorganisms. It does not kill them. "
Not according to what i read.
It does indeed kill the microorganisms.
This
and
this
are two sources among many that say so.
Google for UV sterilizers, you'll find tons of back up.
UV light KILLS microorganisms.
I dont know aobut that link that was posted, but its simply not true according to everything i read:
Pond Clear CLarifiers
Quote:
|
The Pro Clear Advantage uses clean and efficient ultraviolet light to destroy the green, single-celled algae
|
No filter needed.