Well Known Member
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I just wanted to share the above info with you guys and see what reactions it provokes. Basically, someone argues that based on "scientific controlled tests" Hydro sponge #5 had much better biological filtration that Aquaclear 70and even more dramatic better results against the "over rated" bio wheels.
Although the writer advocates for the use of sponge filters in combination with HOB or canisters he seems to firmly believe that sponge filters' biological filtration is better when compared to other filters.
So, what do you think, pure marketing or facts?
Take a look at the link and post what you think...