Description: brand new and high quality --thickened tough and durable sponge --suitable for fresh water and sea water --reduce algae breeding and fish death --cultivate high density nitrifying bacteria --size can be cut freely as your need item type: filter biochemical sponge applicable: sea water tank fresh water tank and aqua-plant tank color: black size: 50x12x2cm 100x12x2cm 50x50x2cm weight: 25g 50g 110g material: biochemical cotton package includes: 1 * sponge note: 1-2cm error might exist due to manual measurements note: 1cm 0.39Inch please kindly understand. Please contact us first when you have any problem and we will give you the best service and solve the problem asap. Thank you so much.
Size: [100*12*2cm]
