---
product_id: 48557707
title: "API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 118 ml Bottle"
brand: "api"
price: "€ 28.05"
currency: EUR
in_stock: true
reviews_count: 13
category: "Api"
url: https://www.desertcart.hr/products/48557707-api-quick-start-freshwater-and-saltwater-aquarium-nitrifying-bacteria-118
store_origin: HR
region: Croatia
---

# Instant fish addition Works in fresh & saltwater Reduces harmful compounds API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 118 ml Bottle

**Brand:** api
**Price:** € 28.05
**Availability:** ✅ In Stock

## Summary

> 🐠 Dive in instantly—your fish’s new best friend!

## Quick Answers

- **What is this?** API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 118 ml Bottle by api
- **How much does it cost?** € 28.05 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/48557707-api-quick-start-freshwater-and-saltwater-aquarium-nitrifying-bacteria-118)

## 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

- • **Dual Environment Power:** Formulated for both freshwater and saltwater tanks—versatility meets performance.
- • **Keep Your Fish Thriving:** Routine use reduces toxic compounds, preventing fish loss and stress.
- • **Stress-Free Tank Maintenance:** Use during water changes and filter swaps to maintain a stable ecosystem.
- • **Start Your Aquarium Like a Pro:** Add fish immediately with confidence using powerful nitrifying bacteria.
- • **Trusted by Aquarists Worldwide:** Highly rated with 4.6 stars and a top rank in aquarium water treatments.

## Overview

API QUICK START is a 118 ml liquid solution containing nitrifying bacteria that enables immediate fish addition in new freshwater and saltwater aquariums. It reduces harmful compounds, supports fish health, and stabilizes water conditions during tank startups, water changes, and filter maintenance. Trusted by thousands with a 4.6-star rating, it’s a must-have for every serious aquarist.

## Description

Free delivery and returns on eligible orders. Buy API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 118 ml Bottle at desertcart UK.

Review: Superb products. - 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.
Review: Useful, excellent - Useful, excellent

## Features

- Contains one (1) API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 118 ml 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 | B006YG1ZLC |
| Allergen Information | Allergen-Free |
| Batteries Included | No |
| Batteries required | No |
| Best Sellers Rank | 1,155 in Pet Supplies ( See Top 100 in Pet Supplies ) 6 in Aquarium Water Treatments |
| Colour | Clear |
| Customer Reviews | 4.6 4.6 out of 5 stars (14,983) |
| Date First Available | 21 April 2012 |
| EU Energy Efficiency Label | B |
| Flavor | Other |
| Item Form | Liquid |
| Item Weight | 136 g |
| Item model number | 89C |
| Number of Items | 1 |
| Pet Life Stage | All Life Stages |
| Pet Type | Fish |
| Product Dimensions | 3.81 x 3.81 x 15.24 cm; 136.08 g |
| Quantity | 1 |
| Size | 118 ml (Pack of 1) |
| Special features | Made In America1 |
| Specific Uses | Active |
| Volume | 4 |

## Product Details

- **Brand:** API
- **Item form:** Liquid
- **Item weight:** 0.3 Pounds
- **Liquid volume:** 118 Millilitres
- **Manufacturer:** API

## Images

![API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 118 ml Bottle - Image 1](https://m.media-amazon.com/images/I/71RL8D-+cxL.jpg)
![API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 118 ml Bottle - Image 2](https://m.media-amazon.com/images/I/A1KBUhgj1SL.jpg)
![API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 118 ml Bottle - Image 3](https://m.media-amazon.com/images/I/91Ebqzs9UAL.jpg)
![API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 118 ml Bottle - Image 4](https://m.media-amazon.com/images/I/81Lf0ZtO2aL.jpg)
![API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 118 ml Bottle - Image 5](https://m.media-amazon.com/images/I/81SfKyxbXJL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: May I use this when cleaning an aquarium weekly instead of using stress enzyme?**
A: Yes, I use it every time I clean the aquarium.  I usually put half the required amount directly into the filter (once I've clean it) and the rest in the tank itself.  Its perfect for introducing new fish to the aquarium as well as when cleaning it out.

**Q: How much quick start should i use when doing a water change? should i use dosage vs total water in the tank (30l) or water i am changing (7.5l) thx**
A: As it's a partial water change; not servicing the filter itself; stick with the amount for the total capacity of the tank will be adequate. A little over will do no harm either, adding a little now & then will keep both the tank & filter up with its ideal bacteria levels to process the muck etc. Some with more money then sense will dump the whole bottle regardless.

**Q: Can this be used to help cycle my new tank for my axolotls?**
A: Yes

**Q: Do I need to remove the carbon whilst using Quick start.**
A: Not at all, its all part of the natural waste breakdown you're attempting to build into the filter system overall. In any-case usual charcoal media is replaced a few times before the rest of the filter needs cleaning out. The charcoal itself will be somewhere else for the good bacteria to colonise. In some cases the bacteria will help quicken the breakdown the mulm clogging up the charcoal too & may extend its use a little.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Superb products.
*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.

### ⭐⭐⭐⭐⭐ Useful, excellent
*by B***W on 25 October 2025*

Useful, excellent

### ⭐⭐⭐⭐⭐ worth the money
*by K***E on 7 January 2026*

provides your tank with a bulk load of good bacteria to help build a colony against amonia and nitrates / nitrites

## Frequently Bought Together

- API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 4-Ounce Bottle
- API STRESS COAT Aquarium Water Conditioner 16-Ounce Bottle
- API ACCU-CLEAR Freshwater Aquarium Water Clarifier 8-Ounce Bottle

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**Shop now:** [https://www.desertcart.hr/products/48557707-api-quick-start-freshwater-and-saltwater-aquarium-nitrifying-bacteria-118](https://www.desertcart.hr/products/48557707-api-quick-start-freshwater-and-saltwater-aquarium-nitrifying-bacteria-118)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-05*