Brightwell Aquatics MicroBacter7 – Complete Bioculture (500 ml) Achieve crystal-clear water with this potent microbial blend—designed to break down waste, stabilize nutrient levels, and speed up system clarity. Marine or freshwater, it works fast. 🌊🦠 Key Benefits Breaks down organic nitrogen, ammonia, nitrite, nitrate, and phosphate quickly Improves substrate cleanliness & reduces cyanobacteria Enhances oxygen levels and suppresses hydrogen sulfide Safe for both reef and fish-only systems How to Use Shake well and pre-dilute with ~250 ml aquarium water. Initial dosing: 5 ml per 25 US gal daily for 2 weeks; disable skimmer & UV for 4 hrs post-dose. Maintenance: 5 ml per 50 US gal weekly, or 1 drop per 50 US gal daily. Do not exceed 1 drop per 10 US gal per day. What’s Included 500 ml bottle of MicroBacter7 Measuring cap More Information Item Name Brightwell Aquatics MicroBacter7 – Complete Bioculture – 500 ml Brand Brightwell Aquatics Manufacturer SKU BW-BAC500 UPC — Volume 500 ml (~17 fl oz) Shop Other Sizes MicroBacter7 – 250 ml MicroBacter7 – 1 L