Search  for anything...
API

API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 16-Ounce Bottle

  • Based on 11,331 reviews
Condition: New
Checking for product changes
$16.98 Why this price?
Save $5.41 was $22.39

Buy Now, Pay Later


As low as $4 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Wednesday, May 22
Order within 18 hours and 52 minutes
Available payment plans shown during checkout

Size: 16-Ounce


Style: Freshwater


Features

  • 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

Description

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. Aquarium Nitrifying Bacteria


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 2.5 x 2.5 x 8.75 inches; 13.44 Ounces


Item model number ‏ : ‎ 89E


Date First Available ‏ : ‎ January 13, 2012


Manufacturer ‏ : ‎ Mars Fishcare


Country of Origin ‏ : ‎ USA


Domestic Shipping: Item can be shipped within U.S. International Shipping This item can be shipped to select countries outside of the U.S. Learn More


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, May 22

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • PayTomorrow Financing
  • Apple Pay Later
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • speeds up cycling process
Size: 4-Ounce Style: Freshwater
i recommend buying this product when you are starting a new aquarium. It has all of the bacteria that you need for converting nitrites (toxic for fish) into nitrates (less toxic for fish). As a beginner, i definitely regret not buying this at when i first started cycling my tank because I was waiting for these bacteria to grow when obviously they were not present. But anyways, it helps speed up the process of cycling the tank. ALSO, shake it really hard before use for full effect. think of it as orange juice, all of the pulp is at the bottom and you need to disperse the good stuff by shaking it lol ... show more
Reviewed in the United States on March 3, 2023 by Estefany B.

  • Might be better than Seachem Prime
Size: 16-Ounce Style: Freshwater
After using, within 24 hours my tank got really cloudy. But this is actually a good thing. This is beneficial bacteria colonizing and the cloudiness will go away in a few days. So it looks like the product is doing it's job.
Reviewed in the United States on March 12, 2023 by Amazon Customer

  • Fish didn't die. Works good.
Size: 16-Ounce Style: Freshwater
It hasn't killed any of my Glofish. Product works as stated. I pretreat my water with it before adding it to my tank. Never had a problem.
Reviewed in the United States on March 19, 2023 by Aaron

  • WORKS PERFECTLY…
Size: 16-Ounce Style: Freshwater
I use this when starting a new aquarium and with water changes and it’s a great product. Removed the chlorine and other bad stuff from tap water and starts beneficial bacteria growth. I’ve used other quick starts but this one is the best.
Reviewed in the United States on March 1, 2023 by DelMarVaKinkster

  • A must have for starting up your Aquarium.
Size: 16-Ounce Style: Freshwater
Worked as expected and is an excellent value for the cost. The cap has a built-in measuring cup for accurate dosage and directions made it easy to use. Some interpolation is required for smaller tanks but not difficult. Would recommend it to anyone who is setting up their aquarium.
Reviewed in the United States on February 18, 2023 by CEG

  • API is a MUST HAVE
Size: 8-Ounce Style: Freshwater
This is a must have product for your aquarium. You will love the appearance and overall outcome of your aquarium
Reviewed in the United States on March 8, 2023 by Lisa Abke Lisa Abke

  • works
Size: 32-Ounce Style: Freshwater
proper use of product for your fish tanks
Reviewed in the United States on March 14, 2023 by Amazon Customer

  • Works
Size: 16-Ounce Style: Freshwater
Have 2 aquariums and keeps them running efficient
Reviewed in the United States on March 11, 2023 by KT

Can't find a product?

Find it on Amazon first, then paste the link below.