ATM Colony Saltwater 16oz – Live Nitrifying Bacteria for Reef Aquariums

ATM Colony Saltwater is a professional-grade biological filtration solution formulated with authentic, true nitrifying bacteria. Unlike common bacterial additives, Colony contains only aerobic autotrophic bacteria—the microorganisms responsible for converting toxic ammonia and nitrite into safer compounds in saltwater aquariums.

By delivering a fully pre-cultured bio-filter, ATM Colony reduces aquarium cycling time from weeks to just days. This makes it ideal for large or high-bioload systems, new aquarium setups, post-medication recovery, adding new livestock, or replacing biological filter media.

Trusted by public aquariums around the world, ATM Colony offers proven, reliable results and immediate biological stability for reef and marine systems.

Key Features:

• Contains true nitrifying bacteria (aerobic autotrophs)
• Rapidly establishes biological filtration
• Reduces cycling time from weeks to days
• Ideal for large tanks & high bioload systems
• Safe for reef, fish-only & marine aquariums
• Trusted by public aquariums worldwide
• Easy to use with fast, consistent results

ATM Colony Saltwater 16oz is a high-capacity live bacteria solution designed for aquarists who need fast, dependable bio-filtration. Perfect for new reef systems or restoring stability after tank disruptions, Colony delivers professional-level results with ease. Available now at Reef Freaks.