Mr Koizumi - Sludge remover

Mr Koizumi “Sludge Remover” contains bacteria specially developed to reduce the sludge layer. Regularly adding these bacteria to the pond reduces sludge and deposits on the walls and bottom of the pond. Sludge Remover can also be added to the pond filter to prevent clogging by breaking down organic material. This product is particularly suitable for natural down flow filters with lava or substrate.