From the Fluval range. Premium bituminous carbon. Removes trace metals toxic to sensitive fish, organic contaminants, discolourations & odors. Creates sparkling, crystal clear water. Made of bitnuminous carbon – long lasting, highly pourous & absorbent. Will not raise phosphate levels. 800g per tub. Includes mesh bag. For use with external filters: 106 107 206 207 & 306 307 406 407 & Fx2 Fx4 Fx6. Replace every 4 weeks.
