ATM Colony Saltwater 32oz – Live Nitrifying Bacteria for Reef Aquariums

ATM Colony Saltwater delivers authentic, true nitrifying bacteria to rapidly establish biological filtration in saltwater aquariums. Unlike generic bacterial blends, Colony contains only aerobic autotrophic bacteria—the exact organisms responsible for converting toxic ammonia and nitrite into safer compounds.

By providing a fully pre-cultured bio-filter, ATM Colony dramatically shortens aquarium cycling time from weeks to just days. This makes it ideal for large reef systems, public aquariums, retail holding tanks, and high-bioload marine environments. It is also perfect for restoring bio-filtration after medication, livestock additions, or biological media replacement.

Trusted by public aquariums worldwide, ATM Colony offers proven performance, reliability, and immediate biological stability for reef and marine systems.

Key Features:

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

ATM Colony Saltwater 32oz is a high-volume live bacteria solution designed for serious reef keepers and large marine systems. Whether starting a new aquarium or restoring stability after disruption, Colony delivers fast, professional-grade bio-filtration results. Available now at Reef Freaks.