• the perfect place for beneficial bacteria to flourish in order to remove harmful fish wastes.
•  eliminate ammonia and lower nitrates.
• one of the most technically advanced bio-media available today.
• will not harm aquarium inhabitants.
• Better value due to high performance, Reduced tank maintenance, Allows for higher fish loads.
• suitable for used in tank,  sump, canister filters,  DIY filters,  trickle or shower filters,  waterfall filters,  hang on back filters.

packing contents: 20pcs x (17cm x 4cm)