The Stuff performs as advertised. I have it all my filters, but it is ideal, and works best in a wet/dry situation... Also you HAVE TO HAVE serious mechanical pre-filter.
Another thing with this stuff is it needs an extreme pre-filter.
What would you consider adequate as a pre-filter? Right now I have the stock sponge from the Finnex running before it but I have this I could add a piece of after the sponge if you think it would be worthwhile.