Check the listing for details. Muck Block | Kasco Macro-Zyme beneficial bacteria. Condition: New. Listed at 78.00 USD. Muck Block by Kasco is one of the most effective beneficial bacteria products on the market. Muck Block contains a unique blend of bacteria that breaks down organic matter and reduces ammonia levels in your pond. Kasco Macro-Zyme is a powerful probiotic that helps to improve water quality and clarity. This product is safe for fish, plants, and animals, and is an integral part of any pond management program. If you're looking for a beneficial bacteria product that can help improve water quality and clarity, Muck Block is an excellent choice. This powerful probiotic contains over 30 strains of beneficial bacteria and is specially formulated to break down organic waste quickly and efficiently. In addition, Muck Block helps to reduce sludge build-up, eliminate odors, and create a healthier environment for your fish.Low MaintenanceBacteria BasedOdor-eliminating30 species of enzymesHello from our team at whole-lotta-watta, A.K.A Weeders Digest! Looking for a different size or selection than you’re seeing here? We pride ourselves on having the most complete offering of unique and beneficial lake and pond product solutions. If you’re looking for a unique solution for your situation, or just need an extra helping hand, don’t hesitate to contact us! We’d love to hear from you.