---
product_id: 47892509
title: "API Saltwater Master Test Kit for Saltwater Aquariums (550 Tests)"
brand: "api"
price: "R$596"
currency: BRL
in_stock: true
category: "Api"
url: https://www.desertcart.com.br/products/47892509-api-saltwater-master-test-kit-for-saltwater-aquariums-550-tests
store_origin: BR
region: Brazil
---

# high range pH monitoring accurate ammonia & nitrate levels 550 precise tests API Saltwater Master Test Kit for Saltwater Aquariums (550 Tests)

**Brand:** api
**Price:** R$596
**Availability:** ✅ In Stock

## Summary

> 🌟 Keep your saltwater sanctuary flawless — test like a pro, every time!

## Quick Answers

- **What is this?** API Saltwater Master Test Kit for Saltwater Aquariums (550 Tests) by api
- **How much does it cost?** R$596 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/47892509-api-saltwater-master-test-kit-for-saltwater-aquariums-550-tests)

## 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

- • **Complete Testing Kit:** Includes 6 solution bottles, 4 glass test tubes with caps, and a color card for easy, professional analysis
- • **Master Your Marine Habitat:** 550 tests ensure long-term, reliable water quality control
- • **Proactive Fish Health Defense:** Early detection of invisible water issues prevents costly fish loss
- • **Weekly & On-Demand Monitoring:** Ideal for routine checks or troubleshooting, empowering confident aquarium management
- • **Precision pH & Chemical Tracking:** High range pH, ammonia, and nitrate measurements keep your saltwater ecosystem thriving

## Overview

The API Saltwater Master Test Kit offers 550 high-accuracy tests to monitor essential water parameters—high range pH, ammonia, and nitrate—in saltwater aquariums. Equipped with six solution bottles, four glass test tubes, and a color card, it enables weekly and on-demand testing to prevent invisible water problems and protect fish health. Trusted by thousands with a 4.7-star rating, this kit is a must-have for serious saltwater aquarium enthusiasts.

## Description

Free delivery and returns on eligible orders. Buy API Saltwater Master Test Kit for Saltwater Aquariums (550 Tests) at desertcart UK.

## Features

- Causes serious eye damage.
- Causes serious eye irritation.
- Causes severe skin burns and eye damage.
- Harmful if swallowed.
- May be corrosive to metals.
- May cause respiratory irritation.
- Warning! Do not use together with other products. May release dangerous gases (chlorine).
- Contains one API SALTWATER MASTER TEST KIT 550-Test Saltwater Aquarium Water Test Kit, including six bottles of testing solution, one colour card and four glass test tubes with cap
- Measures levels of high range pH, ammonia and nitrate
- Helps monitor and adjust pH and prevent invisible water problems that can be harmful to fish
- Provides high accuracy results that ultimately prevent fish loss
- Use for weekly monitoring and when water or fish problems appear

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001EUE808 |
| Batteries Included | No |
| Batteries required | No |
| Best Sellers Rank | 960 in Pet Supplies ( See Top 100 in Pet Supplies ) 2 in Aquarium Test Kits |
| Customer Reviews | 4.7 4.7 out of 5 stars (39,564) |
| Date First Available | 8 Aug. 2009 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Item Weight | 454 g |
| Item model number | 401M |
| Number of Items | 1 |
| Pet Type | Fish |
| Product Dimensions | 17.78 x 14.61 x 12.07 cm; 453.59 g |
| Quantity | 1 |
| Size | One Size |
| Volume | 2 |

## Images

![API Saltwater Master Test Kit for Saltwater Aquariums (550 Tests) - Image 1](https://m.media-amazon.com/images/I/71A-PyQBvVL.jpg)

## Available Options

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

## Questions & Answers

**Q: How long does it last you and do I need to buy a syringe too?**
A: A syringe is helpful for filling the test tubes. I would get one that is at lest 20 ml that way you can fill the syringe once and use it to fill all four test tubes.

In the freshwater kit you get 37ml of each test solution except the nitrate one for which you only get 30 ml. The number of drops you use for each test varies, taking one drop as 0.05 ml gives the following approx number of tests:

pH: 245 tests
pH High Range: 148 tests
Ammonia: 92 tests
Nitrite: 148 tests
Nitrate: 60 tests

**Q: Is it single use?? if not how many times can you test??**
A: It is a whole kit with small bottles for each test. You can do probably around 40-60 tests for each of the water parimitars with this kit.

**Q: What is the expire date on this item please**
A: Have just had this product delivered July 2020 with a best before date of December 2024, so good shelf life and only drops needed for each test, weekly use seems to be the recommended

**Q: Can I get new test tubes?**
A: Contact API or your fish pet shop - they should know; the kit has 4 tubes for the 4 tests.
Or do as I did - instead of buying refill of solutions purchase another kit.

## Frequently Bought Together

- API SALTWATER MASTER TEST KIT 550-Test Saltwater Aquarium Water Test Kit
- Instant Ocean Sea Salt 50 Gallons, For Marine Aquariums, Fast Dissolving

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**Shop now:** [https://www.desertcart.com.br/products/47892509-api-saltwater-master-test-kit-for-saltwater-aquariums-550-tests](https://www.desertcart.com.br/products/47892509-api-saltwater-master-test-kit-for-saltwater-aquariums-550-tests)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-08-27*