mep
Member
read about uv sterilizers got to thinkin- the question is can a de 150w mh with no glass shield used to filter out uv rays have the same effect?
i know uv sterilizers work by close, long exposure when water is going through the sleeve
but running 150 mh in a sump 12 inch deep be the same effect?
i know uv sterilizers work by close, long exposure when water is going through the sleeve
but running 150 mh in a sump 12 inch deep be the same effect?