Review on Enhance Your Aquarium's Filtration with Fluval Biomax Filter Media by Chelsea Miller

I think this is one of the best organic carriers. It's relatively cheap and very effective; I use it in all my doses. I bought this box to fill a step in my SUNSUN HW-302. In the past I had very healthy and densely populated tanks with this medium. I know some people say that the micropores in this type of media clog over time, but how quickly this happens really depends on a lot of factors. I wash mine with tank water at every water change and maybe once a year I change 10% to fresh medium.