---
product_id: 47985627
title: "API Nitrate 90-Test Freshwater And Saltwater Aquarium Water Test Kit, 5 Count (Pack of 1)"
brand: "api"
price: "R$322"
currency: BRL
in_stock: true
reviews_count: 13
category: "Api"
url: https://www.desertcart.com.br/products/47985627-api-nitrate-90-test-freshwater-and-saltwater-aquarium-water-test
store_origin: BR
region: Brazil
---

# Fresh & saltwater compatible 90 precise nitrate tests Results in 5 minutes API Nitrate 90-Test Freshwater And Saltwater Aquarium Water Test Kit, 5 Count (Pack of 1)

**Brand:** api
**Price:** R$322
**Availability:** ✅ In Stock

## Summary

> 🧬 Stay ahead of the curve—because your fish deserve crystal-clear water!

## Quick Answers

- **What is this?** API Nitrate 90-Test Freshwater And Saltwater Aquarium Water Test Kit, 5 Count (Pack of 1) by api
- **How much does it cost?** R$322 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/47985627-api-nitrate-90-test-freshwater-and-saltwater-aquarium-water-test)

## 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

- • **Long-lasting Supply:** Up to 90 tests per kit means consistent monitoring without frequent repurchases.
- • **Dual Environment Ready:** Seamlessly test both freshwater and saltwater tanks with one versatile kit.
- • **Quick & Simple Testing:** Get reliable results in just 5 minutes with easy-to-follow steps and clear color charts.
- • **Proactive Aquarium Health:** Prevent harmful algae growth and invisible water issues before they threaten your fish.
- • **Accurate Nitrate Detection:** Pinpoint nitrate levels from 0-160 mg/L to keep your aquatic ecosystem thriving.

## Overview

The API Nitrate 90-Test Kit offers precise, easy-to-use nitrate testing for both freshwater and saltwater aquariums. With up to 90 tests per kit, quick 5-minute results, and a clear color chart, it empowers aquarium enthusiasts to maintain optimal water quality, prevent algae growth, and protect fish health with confidence.

## Description

Free delivery and returns on eligible orders. Buy API Nitrate 90-Test Freshwater And Saltwater Aquarium Water Test Kit, 5 Count (Pack of 1) at desertcart UK.

Review: As easy as it gets... - This API Nitrite test kit is for testing fresh water or salt water for levels of nitrite. Used mainly for aquariums as nitrite, if present in water, can be harmful to fish. The test kit is very easy to use. You just fill up the test tube that is provided, to 5ml. There is a marking on the test tube so you know when it has reached 5ml. You then add 5 drops of the solution provided, put the lid on the tube, then shake it for 5 seconds. Wait for 5 minutes, then compare the colour of the water to the colours on the test card. It is that simple. Depending on the colour, the instructions can give you some advice on what to do, which is very helpful. They go into decent detail to explain some things, the headings are.... 1 - Why test for nitrite? 2 - Testing tips 3 - Directions (step by step guide on how to test water using the kit) 4 - What the test results mean 5 - Reducing aquarium nitrite levels 6 - Reducing pond nitrite levels These are written in English, then translated into French, Spanish, Italian, Portuguese, German, Dutch and Swedish. The test kit includes 1 - Nitrite test solution (with childproof safety cap) 2 - Test tube with lid 3 - Instructions 4 - Nitrite colour card The test can be done up to 180 times with the solution provided. The colour card has six different colours. The ranges are 0 ppm, 0,25 ppm, 0.50 ppm, 1.0 ppm, 2.0 ppm and 5.0 ppm. You can see the colour card in the picture that I added above. It also has a step by step picture guide on how to test your water. I mainly purchased this for when I was cycling my fish tank. Once the ammonia started to go down, the nitrite level was rising. I had to keep an eye on this level so I knew when to do water changes so my fish didn't become too sick. My fish tank successfully cycled, but it is also useful to check water levels after cycling. I normally test for nitrite 2 days after the weekly water change when all levels are settled. I believe that test results can be distorted if you test too soon after a water change because of the reaction in the water when you add dechlorinator. My nitrite has stayed at 0ppm but it puts my mind at rest to know for sure. All in all, this test kit has been very helpful to me, especially during the stages when I was just beginning my fish hobby.
Review: Accurate pH readings for hardwater tanks—easy to use, no faff, and results are clear as day. - Been using this for my Rift Lake cichlid setup where high pH is the norm—this kit reads up to 8.8, so it’s ideal. Comes with the test solution, vial, and colour chart. Just fill the vial, add drops, shake, and match the colour. Takes less than a minute and results are easy to read. I’ve tested it against digital meters and it’s bang on. No clouding, no dodgy readings. Works well in both freshwater and marine tanks. I use it weekly and during water changes to make sure things stay stable. The kit lasts ages—160 tests is no joke. Bottle seals tight, and the chart’s printed clearly. No guesswork, no drama. 👍 Pros ✅ Reads high pH—ideal for Rift Lake and marine setups ✅ Quick results—under a minute ✅ Clear colour chart—easy to match ✅ Reliable—matches digital meter readings ✅ Long-lasting—160 tests per kit 👎 Cons ❌ Manual process—needs vial and drops ❌ No digital readout—just colour matching ❌ Can stain if spilled—wipe up quick ❌ Doesn’t cover low pH ranges 🧭 Personal Review If you’re running a high pH tank and want reliable readings without the faff, this API kit earns its spot. I’ve used it across cichlid builds and marine setups—no drama, just clean results and peace of mind. Proper stash-ready gear for anyone who takes water chemistry seriously.

## Features

- Causes serious eye damage.
- Causes serious eye irritation.
- Causes severe skin burns and eye damage.
- Causes skin irritation.
- Harmful if inhaled.
- May be corrosive to metals.
- May cause respiratory irritation.
- Suspected of causing genetic defects.
- Contains one (1) API NITRATE 90-Test Freshwater and Saltwater Aquarium Water Test Kit, including 2 bottles of testing solution, 2 colour cards and 1 glass test tube with cap
- Detects high nitrate levels from 0-160 mg/L
- Helps monitor and adjust pH and prevent invisible water problems that can be harmful to fish
- Prevents algae growth that can be damaging to fish health

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002DVVICS |
| Batteries Included | No |
| Batteries required | No |
| Best Sellers Rank | 1,587 in Pet Supplies ( See Top 100 in Pet Supplies ) 3 in Aquarium Test Kits |
| Customer Reviews | 4.6 4.6 out of 5 stars (19,230) |
| Date First Available | 18 Jun. 2007 |
| 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 | 136 g |
| Item model number | LR1800 |
| Number of Items | 1 |
| Pet Type | Fish |
| Product Dimensions | 6.99 x 4.13 x 13.02 cm; 136.07 g |
| Quantity | 1 |
| Size | 5 Count (Pack of 1) |
| Volume | 1.25 |

## Images

![API Nitrate 90-Test Freshwater And Saltwater Aquarium Water Test Kit, 5 Count (Pack of 1) - Image 1](https://m.media-amazon.com/images/I/610ySfkzyHL.jpg)

## Questions & Answers

**Q: Is this test necessary and is it easy to use for a novice?  I received a 15 gallon as a present but I did not know it would be so much work and money.**
A: The test is easy to use; just remember to empty and rinse your vial after use, and rinse the vial with tank water (I dip some out with a small clean Dixie cup, then pour it into the vial and discard the water into the sink) before filling with water to do your test. And I examine the results under sunlight or a daylight spectrum fluorescent.If  you are doing regular water changes(weekly and/or as your water tests say to), and keeping the tank clean, you will not have to use this test often. Do not overfeed, and do not overload your tank (put too many fish or put too big of a fish in it). At the start you should have ammonia and nitrite test kits, and test daily to see what is going on while your filter cycles, then as a doublecheck for water quality. And yes it can take a month or so for your filter to cycle.Goldfish have a reputation for being a cheap fish, and easy to take care of... I breed and keep fancies; and honestly, 3 goldfish per 55 gallon aquarium!  A mature goldfish is about the size of an adult fist in body; and it is hard to keep water quality good for three that size in that size aquarium. In a 15 gallon no more than two small ones and they are going to grow and outgrow your tank. Half a dozen guppies or so will work, or a couple of mollies; or one betta.  Bettas need water about 85f, good quality, and at least a 10 gallon aquarium.

**Q: Hello I ordered this the 21st of April why is it taking so long to ship it ?**
A: Supply chains could be delayed due to Covid?

**Q: Does this include Nitrate Bottle #1 and Bottle #2?**
A: Ooops! Sorry. Yes it does include Bottle #1 and #2!

**Q: Putting 2.5ml & 5 drops of #1 & #2 each will get the same result? Will color continue to change after the 5 minute wait? Why cap leaks when I shake?**
A: Shake both bottles for one minute then add 10 drops of each to your test vial.  Then shake 30 seconds.   Any other questions should be directed to API. Not a consumer nor a seller

## Customer Reviews

### ⭐⭐⭐⭐⭐ As easy as it gets...
*by R***V on 2 December 2011*

This API Nitrite test kit is for testing fresh water or salt water for levels of nitrite. Used mainly for aquariums as nitrite, if present in water, can be harmful to fish. The test kit is very easy to use. You just fill up the test tube that is provided, to 5ml. There is a marking on the test tube so you know when it has reached 5ml. You then add 5 drops of the solution provided, put the lid on the tube, then shake it for 5 seconds. Wait for 5 minutes, then compare the colour of the water to the colours on the test card. It is that simple. Depending on the colour, the instructions can give you some advice on what to do, which is very helpful. They go into decent detail to explain some things, the headings are.... 1 - Why test for nitrite? 2 - Testing tips 3 - Directions (step by step guide on how to test water using the kit) 4 - What the test results mean 5 - Reducing aquarium nitrite levels 6 - Reducing pond nitrite levels These are written in English, then translated into French, Spanish, Italian, Portuguese, German, Dutch and Swedish. The test kit includes 1 - Nitrite test solution (with childproof safety cap) 2 - Test tube with lid 3 - Instructions 4 - Nitrite colour card The test can be done up to 180 times with the solution provided. The colour card has six different colours. The ranges are 0 ppm, 0,25 ppm, 0.50 ppm, 1.0 ppm, 2.0 ppm and 5.0 ppm. You can see the colour card in the picture that I added above. It also has a step by step picture guide on how to test your water. I mainly purchased this for when I was cycling my fish tank. Once the ammonia started to go down, the nitrite level was rising. I had to keep an eye on this level so I knew when to do water changes so my fish didn't become too sick. My fish tank successfully cycled, but it is also useful to check water levels after cycling. I normally test for nitrite 2 days after the weekly water change when all levels are settled. I believe that test results can be distorted if you test too soon after a water change because of the reaction in the water when you add dechlorinator. My nitrite has stayed at 0ppm but it puts my mind at rest to know for sure. All in all, this test kit has been very helpful to me, especially during the stages when I was just beginning my fish hobby.

### ⭐⭐⭐⭐⭐ Accurate pH readings for hardwater tanks—easy to use, no faff, and results are clear as day.
*by G***E on 21 September 2025*

Been using this for my Rift Lake cichlid setup where high pH is the norm—this kit reads up to 8.8, so it’s ideal. Comes with the test solution, vial, and colour chart. Just fill the vial, add drops, shake, and match the colour. Takes less than a minute and results are easy to read. I’ve tested it against digital meters and it’s bang on. No clouding, no dodgy readings. Works well in both freshwater and marine tanks. I use it weekly and during water changes to make sure things stay stable. The kit lasts ages—160 tests is no joke. Bottle seals tight, and the chart’s printed clearly. No guesswork, no drama. 👍 Pros ✅ Reads high pH—ideal for Rift Lake and marine setups ✅ Quick results—under a minute ✅ Clear colour chart—easy to match ✅ Reliable—matches digital meter readings ✅ Long-lasting—160 tests per kit 👎 Cons ❌ Manual process—needs vial and drops ❌ No digital readout—just colour matching ❌ Can stain if spilled—wipe up quick ❌ Doesn’t cover low pH ranges 🧭 Personal Review If you’re running a high pH tank and want reliable readings without the faff, this API kit earns its spot. I’ve used it across cichlid builds and marine setups—no drama, just clean results and peace of mind. Proper stash-ready gear for anyone who takes water chemistry seriously.

### ⭐⭐⭐⭐⭐ Straightforward
*by I***E on 17 September 2025*

As others have mentioned, initially the dropper bottle will drip quickly when turned upside down, so a little care is needed, and it will do it less after a few drops have been used. Otherwise straightforward to use.

## Frequently Bought Together

- API NITRATE 90-Test Freshwater and Saltwater Aquarium Water Test Kit
- API GH & KH TEST KIT Freshwater Aquarium Water Test Kit, 2.5 oz.

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-01-25*