---
product_id: 273918239
title: "API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 1-Ounce Bottle"
brand: "api"
price: "$23.33"
currency: USD
in_stock: true
reviews_count: 5
category: "Api"
url: https://www.desertcart.us/products/273918239-api-quick-start-freshwater-and-saltwater-aquarium-nitrifying-bacteria-1
store_origin: US
region: United States of America
---

# Instant fish addition Fresh & saltwater safe Patented nitrifying bacteria API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 1-Ounce Bottle

**Brand:** api
**Price:** $23.33
**Availability:** ✅ In Stock

## Summary

> ⚡ Dive in now—no waiting, just thriving aquatic life!

## Quick Answers

- **What is this?** API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 1-Ounce Bottle by api
- **How much does it cost?** $23.33 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/273918239-api-quick-start-freshwater-and-saltwater-aquarium-nitrifying-bacteria-1)

## Best For

- api enthusiasts

## Why This Product

- Trusted api brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted Legacy Brand:** Backed by 50+ years of API innovation for healthier, happier fish.
- • **Instant Aquarium Cycling:** Add fish immediately without waiting for tank setup delays.
- • **Routine Water Health Booster:** Use regularly to maintain a stable, toxin-free aquatic environment.
- • **Scientifically Proven Formula:** Patented nitrifying bacteria rapidly neutralize harmful ammonia and nitrite.
- • **Dual Environment Compatibility:** Perfectly formulated for both freshwater and saltwater aquariums.

## Overview

API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria is a 1-ounce liquid treatment containing patented live bacteria that instantly kickstarts the nitrogen cycle in new or established aquariums. It rapidly reduces toxic ammonia and nitrite levels, allowing immediate fish introduction and ongoing water quality maintenance in both freshwater and saltwater tanks. Trusted by aquarists for over 50 years, this product helps prevent fish loss and supports a healthy aquatic environment with routine use.

## 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 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.

Review: Speedy shipping I added it to my tank and all my fish are fine
Review: Worked as needed

## Features

- 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00DDYZQY0 |
| Allergen Information | Apple Free |
| Batteries Included | No |
| Best Sellers Rank | #18,650 in Pet Supplies ( See Top 100 in Pet Supplies ) #134 in Fish Medication & Health Supplies |
| Color | Multi-colored |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,053) |
| Date First Available | 18 September 2013 |
| Diameter | 1 Inches |
| Flavor | goldfish_fish_food |
| Item Form | Liquid |
| Item Weight | 41.1 g |
| Item model number | 89A |
| Number of Items | 1 |
| Quantity | 1 |
| Volume | 1 |
| batteries required | No |

## Product Details

- **Brand:** API
- **Item form:** Liquid
- **Item weight:** 41.13 Grams
- **Liquid volume:** 1 Fluid Ounces
- **Manufacturer:** API

## Images

![API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 1-Ounce Bottle - Image 1](https://m.media-amazon.com/images/I/71fqv27+R3L.jpg)
![API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 1-Ounce Bottle - Image 2](https://m.media-amazon.com/images/I/A1KBUhgj1SL.jpg)
![API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 1-Ounce Bottle - Image 3](https://m.media-amazon.com/images/I/81Lf0ZtO2aL.jpg)
![API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 1-Ounce Bottle - Image 4](https://m.media-amazon.com/images/I/91Ebqzs9UAL.jpg)
![API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 1-Ounce Bottle - Image 5](https://m.media-amazon.com/images/I/91+Fx9ZWiyL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by B***R on 1 February 2026*

Speedy shipping I added it to my tank and all my fish are fine

### ⭐⭐⭐⭐⭐ Review
*by C***E on 4 March 2026*

Worked as needed

### ⭐⭐⭐⭐⭐ Review
*by M***S on 23 February 2026*

Superb product. API is one of my resources for many of my aquarium essentials. Never had any problem with any of there items. Great value for money, with many products giving you size options for what you need. All products from medicated to water parameters and plant care. These products are made with an ease of understanding for what that purpose is and will help you on your fish keeping journey.

## Frequently Bought Together

- API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 1-Ounce Bottle, Blues & Purples
- API FRESHWATER MASTER TEST KIT 800-Test Freshwater Aquarium Water Master Test Kit, White, Single, Multi-colored

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**Shop now:** [https://www.desertcart.us/products/273918239-api-quick-start-freshwater-and-saltwater-aquarium-nitrifying-bacteria-1](https://www.desertcart.us/products/273918239-api-quick-start-freshwater-and-saltwater-aquarium-nitrifying-bacteria-1)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-10*