---
product_id: 370441478
title: "API 3-Pack Carbonate KH Test Kit for Aquariums, Helps Prevent Fish Stress from pH Shifts"
brand: "api"
price: "$102.09"
currency: USD
in_stock: true
reviews_count: 7
category: "Api"
url: https://www.desertcart.ec/products/370441478-api-3-pack-carbonate-kh-test-kit-for-aquariums-helps
store_origin: EC
region: Ecuador
---

# Prevents fish stress from pH shifts Liquid test for fresh & saltwater Includes color chart & glass tube API 3-Pack Carbonate KH Test Kit for Aquariums, Helps Prevent Fish Stress from pH Shifts

**Brand:** api
**Price:** $102.09
**Availability:** ✅ In Stock

## Summary

> 🐟 Keep your fish thriving—never miss a pH beat!

## Quick Answers

- **What is this?** API 3-Pack Carbonate KH Test Kit for Aquariums, Helps Prevent Fish Stress from pH Shifts by api
- **How much does it cost?** $102.09 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/370441478-api-3-pack-carbonate-kh-test-kit-for-aquariums-helps)

## 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

- • **Precision Liquid Testing:** Accurately measures carbonate hardness (KH) in both fresh and saltwater aquariums to maintain optimal water chemistry.
- • **Protect Your Aquatic Life:** Helps prevent rapid pH shifts that cause fish stress, promoting a healthier, more vibrant aquarium environment.
- • **User-Friendly Instructions:** Clear, step-by-step guidance ensures even first-time users can confidently maintain their aquarium’s carbonate hardness.
- • **Complete 3-Pack Convenience:** Three test kits in one package ensure continuous monitoring without frequent repurchasing—stay ahead of water quality issues.
- • **Visual Color Chart & Glass Tube:** Easy-to-read color comparison with included glass tube simplifies testing, making it quick and reliable for busy aquarium managers.

## Overview

The API 3-Pack Carbonate KH Test Kit offers a reliable liquid testing solution for measuring carbonate hardness in fresh and saltwater aquariums. Featuring a user-friendly color chart, glass test tubes, and clear instructions, this kit helps prevent fish stress caused by rapid pH shifts. Ideal for proactive aquarium managers, the triple-pack ensures ongoing water quality monitoring to maintain a healthy aquatic environment.

## Description

Product description Tests tap water & fresh or saltwater aquariums for carbonate hardness (KH). Helps prevent fish stress caused by rapid pH shifts, the result of low levels of KH. Directions To test the carbonate hardness (KH) of your aquarium or pond water, add a small amount of water to the test bottle, shake it, and compare the resulting color to the provided color chart using the glass test tube. Refer to the easy-to-read instructions for more details.

Review: Kh test - Did what is needed to test tank
Review: Weren't accurate unfortunately - Unfortunately these aren't accurate. I'm not sure what happened as the api ones are usually okay but these were giving me incorrect readings. Possibly a bad batch? Double and triple checked with the nt labs liquid tests.

## Features

- Causes severe skin burns and eye damage.
- Liquid test for fresh and saltwater
- Helps detect stress on fish caused by rapid pH shifts, the result of low KH levels
- Contains color chart, clear instructions and glass tube(s)
- Pack of 3

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07HGBYNRJ |
| Batteries Included | No |
| Batteries required | No |
| Best Sellers Rank | 82,532 in Pet Supplies ( See Top 100 in Pet Supplies ) 193 in Aquarium Test Kits |
| Colour | Multi-colored |
| Customer Reviews | 3.9 3.9 out of 5 stars (46) |
| Date First Available | 18 Sept. 2018 |
| 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 Form | Liquid |
| Item Weight | 68 g |
| Item model number | 59 |
| Product Dimensions | 7.62 x 3.81 x 13.97 cm; 68 g |
| Quantity | 3 |

## Product Details

- **Brand:** API
- **Item form:** Liquid
- **Liquid volume:** 37 Millilitres
- **Manufacturer:** API
- **Pet Type:** Fish

## Images

![API 3-Pack Carbonate KH Test Kit for Aquariums, Helps Prevent Fish Stress from pH Shifts - Image 1](https://m.media-amazon.com/images/I/81lVZSM1UzL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Kh test
*by I***. on 16 December 2025*

Did what is needed to test tank

### ⭐ Weren't accurate unfortunately
*by G***R on 16 December 2025*

Unfortunately these aren't accurate. I'm not sure what happened as the api ones are usually okay but these were giving me incorrect readings. Possibly a bad batch? Double and triple checked with the nt labs liquid tests.

### ⭐⭐⭐⭐⭐ Review
*by D***A on 5 March 2025*

Always can count on the quality of this item.

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**Shop now:** [https://www.desertcart.ec/products/370441478-api-3-pack-carbonate-kh-test-kit-for-aquariums-helps](https://www.desertcart.ec/products/370441478-api-3-pack-carbonate-kh-test-kit-for-aquariums-helps)

---

*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-03-09*