API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 1-Ounce Bottle, Blues & Purples

$2.79

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Price: $2.79
(as of Oct 13, 2025 19:29:04 UTC – Details)


In a new aquarium, harmful ammonia and nitrite build up from fish waste, often resulting in fish loss or “new tank syndrome”. The unique, patented nitrifying bacteria in API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria are scientifically proven to quickly consume ammonia and nitrite to help prevent fish loss. API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria allows immediate addition of fish to a new freshwater or saltwater aquarium as it immediately starts the aquarium cycle. This treatment also helps to maintain an active biological filter in an established aquarium for healthy water conditions. API QUICK START contains live, nitrifying bacteria. With API Aquarium products, it’s easy to keep a beautiful saltwater, freshwater or reef aquarium. For over 50 years, API has been creating innovative, research-driven solutions that make it easier to care for your fish and aquarium. API Aquarium Treatment Supplies are designed to work in conjunction with each other to provide best results to control algae, promote healthy bacterial growth and help control and cure fish diseases and conditions such as ich and fin rot. They work to provide a safe, hospitable environment for fish such as tropical community fish, cichlids, goldfish and more. With API, you can spend more time admiring your fish, and less time scrubbing your tank. Make sure to use all products as directed in order to ensure the best results.
Is Discontinued By Manufacturer ‏ : ‎ No
Product Dimensions ‏ : ‎ 1 x 1 x 1 inches; 1.45 ounces
Item model number ‏ : ‎ 89A
Department ‏ : ‎ Unisex-Adult
Date First Available ‏ : ‎ April 9, 2013
Manufacturer ‏ : ‎ TopDawg Pet Supply
ASIN ‏ : ‎ B00DDYZQY0
Best Sellers Rank: #13,236 in Pet Supplies (See Top 100 in Pet Supplies) #104 in Aquarium Water Treatments
Customer Reviews: 4.5 4.5 out of 5 stars 924 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });

Contains one (1) API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 1-Ounce Bottle
Allows instant addition of fish when starting a new aquarium
Reduces compounds harmful to fish when used routinely
Helps prevent fish loss in freshwater and saltwater aquariums
Use when starting a new aquarium, when adding new fish and when changing water and filter media

Customers say

Customers find the bacteria treatment effective, particularly for betta fish, and appreciate its size, noting it’s perfect for one fish tank. The product receives positive feedback for its quality, ease of use, and value for money, with one customer highlighting how it quickly establishes biological filtration systems. While the seal and safety aspects are generally positive, some customers report receiving unsealed bottles.

13 reviews for API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 1-Ounce Bottle, Blues & Purples

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  1. Mohammad Altaani

    Good
    Better water quality, fast result. Cheap price good size for one fish tank. Helps water clarity.safe on fish and plants.

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  2. Aleysha Lopez | MV

    Fast
    Great to speed up aquarium, can put fish in same day!

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  3. Quality?

    This is a good product for cycling your aquarium
    I’ve bought this brand before that’s why I bought it again wish I had bought the bigger bottle because I actually bought it for a 5 gallon and switched to a 10 gallon and this bottle is actually for a 5 gallon. But I like this brand I’ve never had any problems with this brand and now I like buying it online with Amazon

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  4. Jeri

    Good product
    Use to jumpstart compost piles. Product arrives quickly and easy to use

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  5. Cheryl Lanzerotti

    Empty bottle
    The bottle was completely empty……

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  6. Maya

    Good for the price
    Good if you are on a budget

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  7. Richard Lykins

    API Tank Starter
    What can i say about this. If you are in the aquarium business you probably have stock in this stuff too. We buy this at least once or twice a year, about everytime we start a new tank which is often enough. We use existing biologicals that from our filters and tanks but we also toss in a cap or 2 of this stuff as well. Always had great results.

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  8. Jessica lowery

    DO NOT WASTE YOUR TIME. NO LIQUID IN THE BOTTLE.
    Received this a few days ago and when I opened the box to get the bottle out it felt really light. I opened it and the seal was gone and only about a teaspoon of liquid is in the bottle. I am returning and getting my money back.

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  9. Leah

    I was aware of the amount because I did read the description but it was still a little disappointing, haha. That’s just me. Good product though.

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  10. cwb34

    Seems to have done the job! Ammonia low to zero a week or two after use.

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  11. allan

    Seem to do the job so good stuff imo.

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  12. Noel Jr

    Worked new aquarium shows signs of beneficial bacteria after just 3 days.

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  13. chris

    WORKS OK

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    API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 1-Ounce Bottle, Blues & Purples
    API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 1-Ounce Bottle, Blues & Purples

    $2.79

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