Bio-Actif Sea Salt - Tropic Marin

Tropic Marin Bio-Actif Sea Salt is a specialized reef salt designed for systems running carbon dosing and Ultra-Low Nutrient Systems (ULNS). Built with pharmaceutical-grade ingredients, it goes beyond standard salt mixes by incorporating bio-active marine compounds that support coral health, coloration, and overall biological stability.   This advanced formula includes built-in carbon sources that promote beneficial bacterial activity, helping naturally reduce nutrients while creating a cleaner, more balanced environment. The result is stronger coral growth, improved coloration, and a more resilient reef. At the same time, Bio-Actif supports fish health by helping protect mucous membranes and reduce stress within the system.   With a complete balance of major, minor, and trace elements—and no added nitrates or phosphates—it provides a clean foundation for demanding reef setups, especially SPS-dominant systems where stability and nutrient control are critical.   Key Features: Formulated for ULNS and carbon dosing systems Contains bio-active marine compounds for coral health and coloration Includes integrated carbon sources to support beneficial bacteria Supports fish health and stress resistance Pharmaceutical-grade purity and consistency Balanced mix of all major, minor, and trace elements Free from added nitrates and phosphates Typical Parameters (approx): Alkalinity: 8 dKH Calcium: 440 ppm Magnesium: 1350 ppm   Designed for advanced reef systems focused on nutrient control and coral performance, Tropic Marin Bio-Actif delivers a clean, stable environment with enhanced biological support built directly into every mix.