Fluval "U" Underwater Filter Size:"U2" organic contaminants and pollutants from

organic contaminants and pollutants from aquarium water

Regular application helps to competitively exclude the establishment of undesirable bacteria in aquariums

Its unique design with large interior indentations work to slow eating

they’re packable and perfect for adventures

Balanced minerals for strong bones & teeth

Fluval "U" Underwater Filter Size:"U2" organic contaminants and pollutants fromFluval underwater filters with three stage filtration are ideal for use in fresh, marine or reptile environments. Stage 1 foam removes large particles. Stage 2 poly carbon cartridge traps fine debris, improves water clarity and removes impurities. Stage 3 BIOMAX provides optimal biological filtration efficiency. For aquariums, terrariums and turtle tanks Ideal supplemental or stand alone filter, or for installations where external filtration is not