Tropic Marin Bio-Actif Sea Salt 25kg / 55lb (200 gal) Bucket

Tropic Marin Bio-Actif Sea Salt is a pharmaceutical-grade sea salt that combines the Pro-Reef formula with prebiotic bacterial food to support a healthy microbiome.

It provides all 70 trace elements found in natural seawater plus bioactive substances that help stabilize water quality and support nutrient uptake by invertebrates.

• Develops a sound microbiological balance
• Stabilizes water quality and supports nutrient intake
• Contains all 70 trace elements plus prebiotic polymers
• Free of nitrates, phosphates, and synthetic additives
• Ideal for new tanks, restocking, or ongoing use in reef systems
• Optimized calcium and magnesium levels for stony corals

Makes approximately 200 gallons of saltwater. Mixed water should be used promptly — not ideal for long-term storage or automated water changes due to the bioactive components.