I wasn't worried about pods, I was more interested in keeping the stuff the filter feeders utilize being kept intact in the water column. I want some particulates in the water, which I have. The water has never been cloudy or yellow, so that hasn't been an issue. I know there are plenty of people that use UV continuously, but I haven't seen any ICH in my tank for over 10 years, so I don't see the point in my case. I do believe a large number of filter feeders like I have must reduce the spore population. But the biologists among us might be able to clarify.