API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 16-Ounce Bottle
$17.38
$17.38
Note: Prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to your order. As an Amazon Associate, we earn from qualifying purchases.
Related Products





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 in API quick start are scientifically proven to quickly consume ammonia and nitrite to help prevent new tank syndrome. Allows immediate addition of fish to a new freshwater or saltwater aquarium. Use when starting a new aquarium, adding new fish, changing water, changing filter media, after medicating, or whenever ammonia or nitrite are detected. Allows instant addition of fish. Helps prevent fish loss. Immediately starts aquarium cycle. Contains live, nitrifying . No refrigeration required. All natural.
Is Discontinued By Manufacturer : No
Product Dimensions : 2.5 x 2.5 x 8.75 inches; 1 Pounds
Manufacturer recommended age : 1 month and up
Item model number : 89E
Department : Unisex-Adult
Date First Available : January 13, 2012
Manufacturer : Mars Fishcare
ASIN : B006YG12F6
Best Sellers Rank: #1,430 in Pet Supplies (See Top 100 in Pet Supplies) #4 in Aquarium Water Treatments
Customer Reviews: 4.8 4.8 out of 5 stars (15,253) 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 16-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
13 reviews for API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 16-Ounce Bottle
Add a review Cancel reply
$17.38
Giovanni Santa Ana –
Instant Cycle Saver – API QUICK START is a Must-Have for Any Aquarium!
The API QUICK START for freshwater and saltwater aquariums is a total game-changer—especially if you’re setting up a new tank or adding fish to an existing one. It makes the nitrogen cycle process way less stressful, both for you and your fish.I used it when starting a new freshwater setup, and within 24 hours my tank was safe and stable. No ammonia spikes, no nitrite issues—it genuinely helps establish the biological filter FAST. It’s also great to use after water changes, adding new fish, or cleaning the filter.What I love is that it’s super easy to use—just shake and pour. The bottle gives clear instructions, and the results speak for themselves. My fish were active and healthy from day one.This is one of those products you always want on hand. It helps create a healthy environment and gives peace of mind whether you’re a beginner or a seasoned aquarist.
Melissa Yarbro –
Perfect for your tanks!
Works great for our tanks!! Great value for the money!! Lasts a lot longer then the small bottles from the other stores!
Madison Meyer –
Must Have for Healthy Tank Ecosystem
Must have for any fish tank owner! Great product and good bottle size for the price. This is my first refill – the first bottle lasted me nearly two years.
HAMMCD18 –
Great product I buy their stuff all the time
I’ve been keeping freshwater fish tanks for five years now I do use API a lot more than some other companies because for my needs it does a great job. You can rely on a PI to deliver, and if there is any problem, you can contact the company they have pretty good Customer service. They too are enthusiasts in the hobby and also lifestyle, but they also understand that sometimes things go wrong. In my opinion, API is a great company. I would love to do some YouTube videos and maybe they would sponsor me.
Robin Hentschel –
Great price
Good price works like it should
RD –
Used also for compost accelerator
I got this to get my compost going. I can’t tell if it’s working, but several people I follow on YouTube say this kind of product does promote faster/more complete compost.
Chula –
It works
It works for a quick start up but I prefer a different brand
Stanley Pleasant –
GET IT GET IT GET IT!!!
This is the ONLY THING I USE FOR MY TURTLES to keep they BIOWASTE DOWN AND MAINTAIN THEIR NITROGEN CYCLE. This product works wonders and i highly recommend it. This product is SUPER CONCENTRATED so you only need to use it AS THE BOTTLE RECCOMENDS!!!!! TRUST ME ON THIS!!!!! I have 1 turtle and 2 bettah fish and i use this product for both tanks. ANYTHING WITH WEBED FEET HANDS OR GILLS REQUIRES THE NITROGEN CYCLE and this product does EXCELLENT with starting the cycle and MAINTAINING IT keeping NITRATES AND NITRITES DOWN TO A VERY MANAGEABLE LEVEL and keeping down the SMELL OF AMONIA IF ANY!!!! so anyone with fish or turtles like me……….BUY THIS AND THANK ME LATER!!!! ENJOY
Bkknife –
Its good to rapidly reduce ammonia
Shishir Shetye –
Highly effectiveImproves water quality by maintaining bacterial coloniesEasy to use… Rather than other products.Must to stepup a new tank.. also it is good to add once in month so replenish the bacterial colonies
Parviz –
Good
J.L. –
This is such a great product for aquarium set ups, at the start up or clean up stage. I’ve used it to cycle my 3 gallon tank for a single betta. Very convenient to use and quality of aquarium water is clear and clean. I’m using a sponge filter with API Quick Start – I add some to my tank water according to the instructions, every time I clean the aquarium. It’s working well for me to date.
Drew Pickworth –
Great price quality first class