ZooBest Ceramic Filter Tubes are an ideal prefilter material for use in freshwater, seawater and garden ponds. The existing drift results from the special form of the tubeles, and therefore it is possible, to store up the dirt particles in a large number.https://www.aquaristikshop.com/aquaristic/ZooBest-Ceramic-Filter-Tubes/183410/
- Sergey M. wrote about ZooBest Ceramic Filter Tubes in 2017:
Great ceramic for any external filter. One of the best for a сolony of bacteries.