ATM Colony Marine Nitrifying Bacteria - Available Sizes

Ensure the rapid establishment of bio-filtration in your marine aquarium with ATM Colony Marine, a trusted solution used by professional aquarium builders worldwide. Designed specifically for marine saltwater systems, this product contains real, commercial-grade nitrifying bacteria that effectively neutralize toxic ammonia and nitrite, allowing you to introduce fish into your aquarium almost immediately.

Key Features:

• Instant Bio-Filtration: Establishes bio-filtration in days, not weeks, using real nitrifying bacteria.
• Ammonia & Nitrite Control: Naturally neutralizes harmful ammonia and nitrite spikes.
• Marine-Specific Formula: Contains Nitrococcus and Nitrosococcus strains, tailored for marine environments.
• All-Natural: Safe and effective for all marine aquariums.
• Professional-Grade: Used in public aquariums, aquaculture, and by professional aquarists.

Available Sizes:

• 4oz (12.5 gal)
• 8oz (25 gal)
• 16oz (50 gal)
• 32oz (100 gal)
• 1 gal (400 gal)

Important Note: This product is specifically for marine saltwater aquariums. If you need a version for tropical freshwater aquariums, please check our separate listing.

Colony Marine is also endorsed by Sydney and Melbourne Aquariums, as well as by Aquacadabra.

Please Note: The bacteria in these bottles may sometimes be visible as small clumps up to 2mm, which is completely normal and does not affect the product's efficacy.

Ensure you purchase the correct size and type for your aquarium's needs.

Aquacadabra acts as credit broker/intermediary and not as a lender.

Klarna's credit products are provided by Klarna Bank AB, which is authorised and regulated by the Swedish Financial Services Authority, with limited supervision by the Financial Conduct Authority. More information can be found here.

Newpay finance options are provided through Deko’s platform by NewDay. P.D. Aquatics Ltd, t/a Aquacadabra is an Introducer Appointed Representative of Pay4Later Ltd, t/a Deko, which is authorised and regulated by the Financial Conduct Authority (ref no 728646) and is a credit broker, not a lender. NewDay Ltd is authorised and regulated by the Financial Conduct Authority (ref no 690292) and is authorised by the Financial Conduct Authority under the Payment Services Regulations 2017 for the provision of payment services (ref no 555318). More information can be found by clicking the newpay option above, or in the Newpay FAQs.

We really want you to be happy with the product that you've received. If however, when the goods arrive they're not what you want, then no problem - we have a 60 day no quibble return guarantee. Just let us know that you're going to return the item(s) by contacting us(stating your Order Number) and complete the returns packing slip that will have been included with your delivery. This will help us to quickly identify the item that you have returned (unopened and unused) - and we'll put a refund through for you.