I have a few Hamburg Mattenfilter sponges available for sale.. 30PPI and 13" x 13" x 2" Perfect for 10, 15, 20L and 33L gallon tanks. Can also be used for other tank sizes, but needs some extra work. $20 each Pickup @ Chilliwack. PM me if interested.

Hello Folks, one thing that comes up often is cleaning the filter material. ! do not wash the filter materials in tap water it will kill off the benifical bacteria we want in out filters. I remove some water from the tank for a water change. using that water in a bucket I clean out the filter...