Sera Crystal Clear Filter Medium Food Activated carbon and copper based

Activated carbon and copper based products are compatible with this formula

easy and hassle free and the unit comes equipped with AquaClear Foam

while naturally enhancing the brilliant colors of its individual members

black and red to deep red and black

Protect your aquatic pets with premium disease control

Sera Crystal Clear Filter Medium Food Activated carbon and copper basedHigh performance filter medium for mechanical filtration The innovative, patented 3D fiber structure of sera crystal clear Professional very quickly removes even smallest particles above 10 m (such as floating algae or sludge). Unlike common filter wool, the filter balls keep their shape and can be washed out several times. They are 80% reusable after washing out. The high performance filter medium is suitable for both freshwater and marine aquariums