Rena Filstar Ceramic Rings 1 Liter Box.
Extremely porous ceramic for maximum surface area.
Permits the growth of large colonies of beneficial bacteria.
Durable-requires no cleaning or maintenance.
Safe for both fresh and saltwater aquariums.
Rena Filstar Ceramic Rings 1 Liter Box.
Extremely porous ceramic for maximum surface area.
Permits the growth of large colonies of beneficial bacteria.
Durable-requires no cleaning or maintenance.
Safe for both fresh and saltwater aquariums.