Swell Control Green Sludge 2 Pack. Pond Clear Water Treatment and Remover

Predosed ready-to-use snuggets that can be put straight into your filter 1 pack contains 6 doses, each treating 4546l (1000G) Economic two pack which should be dosed every 1 - 2 weeks Packed with beneficial bacteria that breaks down organic mater to reduce sludge Safe for Koi, community and wildlife ponds, and can be used year-round