MicroBacter Purple M by Brightwell Aquatics introduces a powerful, shelf-stable blend of purple non-sulfur bacteria designed to boost biodiversity and clarity in saltwater reef systems. These live photosynthetic microbes thrive in both oxygen-rich and low-oxygen environments, effectively breaking down excess nutrients and organic waste while serving as a nutritious food source for corals, sponges, and other filter-feeding invertebrates.

This unique bacterial blend supports both aerobic and anaerobic zones within your aquarium, making it effective when used in deep sand beds, refugiums, reactors, or the main display tank. It is specifically formulated to pair perfectly with MicroBacter7 and MicroBacter Clean for enhanced nutrient control and microbial diversity. The product requires shaking well before use and should be applied according to specific dosing instructions based on whether your system is medium-to-high nutrient or stable and low-nutrient, often requiring the temporary suspension of protein skimming and UV sterilization.

This supplement is best suited for reef keepers seeking a natural method to eliminate detritus and maintain balanced water chemistry without relying solely on mechanical filtration. It is ideal for hobbyists looking to feed their corals and filter feeders directly through bacterial biomass while simultaneously reducing nitrate and phosphate levels. Use this product exclusively in saltwater aquariums to ensure optimal performance and system stability.