--- product_id: 47985627 title: "API Nitrate Test Kit for Freshwater and Saltwater Aquariums, 90-Count Box" brand: "api" price: "S$32" currency: SGD in_stock: true reviews_count: 13 category: "Api" url: https://www.desertcart.sg/products/47985627-api-nitrate-test-kit-for-freshwater-and-saltwater-aquariums-90 store_origin: SG region: Singapore --- # fresh & saltwater compatible detects 0-160 mg/L nitrate range 90 precise nitrate tests API Nitrate Test Kit for Freshwater and Saltwater Aquariums, 90-Count Box **Brand:** api **Price:** S$32 **Availability:** ✅ In Stock ## Summary > 🧬 Keep your aquarium thriving—test smarter, not harder! ## Quick Answers - **What is this?** API Nitrate Test Kit for Freshwater and Saltwater Aquariums, 90-Count Box by api - **How much does it cost?** S$32 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/47985627-api-nitrate-test-kit-for-freshwater-and-saltwater-aquariums-90) ## 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 by Thousands:** 4.7-star rated with over 1,700 reviews—join the community of savvy aquarium pros. - • **Dual Environment Ready:** Perfectly calibrated for both freshwater and saltwater tanks, ensuring versatile use. - • **Algae Growth Prevention:** Detects harmful nitrate spikes early to keep your aquatic ecosystem vibrant and algae-free. - • **Clear & Reliable Results:** Easy-to-read color cards and sturdy glass test tube for accurate, hassle-free testing. - • **Proactive Aquarium Health:** Stay ahead with weekly nitrate monitoring to prevent toxic buildup and fish stress. ## Overview The API Nitrate Test Kit offers 90 accurate tests designed for both freshwater and saltwater aquariums, detecting nitrate levels from 0 to 160 mg/L. Featuring easy-to-use color cards and a durable glass test tube, it empowers aquarium enthusiasts to maintain optimal water quality, prevent algae growth, and ensure a healthy environment for fish. Trusted by thousands with a 4.7-star rating, this kit is essential for proactive, professional-grade aquarium care. ## Description From the manufacturer It’s Smart To Be Proactive! The best way to keep your aquarium clean is to maintain good water quality. This will keep your fish strong and vibrant, as well as preventing disease. How Do I Maintain A Healthy Environment? It is important to test your aquarium water weekly to verify good quality in addition to a bi-weekly partial water change of no more than 25% to help reduce toxic buildup, remove debris the filter missed, and replenish the oxygen available to fish. How Do I Take Good Care Of My Aquarium? Feed & observe fish daily Test water quality weekly Change 25% water bi-weekly Restore your ecosystem monthly Feed Your Fish Daily Feed your fish twice daily only the amount of food they can eat in 2 to 3 minutes depending on the species. Some fish such as bottom feeders and algae eaters will need up to 30 minutes to 2 hours. Overfeeding & low quality nutrition cause unconsumed food and more excrement which cloud water and raise harmful ammonia levels, possibly leading to fish loss. Take time to observe fish and the water temperature to ensure they are active & healthy. Test Water Quality Weekly An aquarium is a closed environment and in order for fish to thrive, water must be similar to that which could be found in their natural environment. Poor water quality can cause fish stress, illness and even loss. The 5 common water quality parameters are Ammonia, Nitrite, Nitrate, and pH - all of which may vary over time and all are invisible to the eye which is why it is important to test weekly with API MASTER TEST KITS or API 5-IN-1 TEST STRIPS. It is also a good time to add API STRESS ZYME to keep your aquarium & gravel clean. Change 25% Water Every 2 Weeks In a closed aquarium environment there are no natural rivers or streams to carry away debris and other waste materials. It is important to renew 25% of the aquarium water every two weeks. When you change the water, it is important to know that tap water contains chemicals that make it safe for us to drink but harmful for fish, therefore add a water conditioner such as API STRESS COAT. Restore Your Ecosystem Monthly It is important to change your filter media & clean gravel monthly, however in doing so it can disrupt the fragile ecosystem of your aquarium. Use API QUICK START to strengthen it with ‘beneficial’ nitrifying bacteria that will naturally consume toxic compounds and help prevent fish stress. Also recommended when starting a new aquarium or changing the water. Making A Better Underwater World At API, we understand the rewards and relaxation of fishkeeping because we have a passion for fish too. API offers a range of testing kits, water conditioners, and nutritionally superior food, because we’re dedicated to making a better underwater world. Review: Accurate and reliable nitrate test kit for regular aquarium care - A very useful test kit for keeping track of water quality in both freshwater and saltwater aquariums. The results are clear and easy to read using the colour chart, which makes monitoring nitrate levels straightforward even for beginners. The kit feels well made, and the glass test tube is sturdy and easy to clean after use. The instructions are simple to follow, and the testing process only takes a few minutes, making it convenient for regular weekly checks. It’s particularly helpful for spotting potential water quality issues before they affect fish or plants. Regular testing helps keep nitrate levels under control and supports a healthier aquarium environment. Overall, a dependable and practical kit that does exactly what it should. A good addition to any aquarium maintenance routine. Review: API nitrate refill - API is the only test kit I use. Accurate and the devilery is good. ## 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 | | Best Sellers Rank | 14,258 in Pet Supplies ( See Top 100 in Pet Supplies ) 27 in Aquarium Test Kits | | Brand | API | | Country Of Origin | United Kingdom | | Customer Reviews | 4.7 out of 5 stars 1,737 Reviews | | Global Trade Identification Number | 00317163000182 | | Item Weight | 91 g | | Manufacturer | API | | Manufacturer Part Number | LR1800 | | Material Type | Glass | | Model Number | LR1800 | | Number of items | 1 | | UPC | 317163000182 | | Unit Count | 1 count | | Unit count | 1 count | ## Product Details - **Brand:** API - **Manufacturer:** Mars Fishcare - **Recommended Uses For Product:** Nitrate Test - **UPC:** 317163000182 - **Unit Count:** 1 Count ## Images ![API Nitrate Test Kit for Freshwater and Saltwater Aquariums, 90-Count Box - Image 1](https://m.media-amazon.com/images/I/610ySfkzyHL.jpg) ![API Nitrate Test Kit for Freshwater and Saltwater Aquariums, 90-Count Box - Image 2](https://m.media-amazon.com/images/I/912wxlaCtKL.jpg) ![API Nitrate Test Kit for Freshwater and Saltwater Aquariums, 90-Count Box - Image 3](https://m.media-amazon.com/images/I/71VZ9LAOtoL.jpg) ![API Nitrate Test Kit for Freshwater and Saltwater Aquariums, 90-Count Box - Image 4](https://m.media-amazon.com/images/I/81RL5ursEvL.jpg) ![API Nitrate Test Kit for Freshwater and Saltwater Aquariums, 90-Count Box - Image 5](https://m.media-amazon.com/images/I/81NmHpeBddL.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 ### ⭐⭐⭐⭐⭐ Accurate and reliable nitrate test kit for regular aquarium care *by A***O on 1 April 2026* A very useful test kit for keeping track of water quality in both freshwater and saltwater aquariums. The results are clear and easy to read using the colour chart, which makes monitoring nitrate levels straightforward even for beginners. The kit feels well made, and the glass test tube is sturdy and easy to clean after use. The instructions are simple to follow, and the testing process only takes a few minutes, making it convenient for regular weekly checks. It’s particularly helpful for spotting potential water quality issues before they affect fish or plants. Regular testing helps keep nitrate levels under control and supports a healthier aquarium environment. Overall, a dependable and practical kit that does exactly what it should. A good addition to any aquarium maintenance routine. ### ⭐⭐⭐⭐⭐ API nitrate refill *by M***A on 12 May 2026* API is the only test kit I use. Accurate and the devilery is good. ### ⭐⭐⭐⭐⭐ Simple to use test kit. *by R***N on 31 March 2026* Seems to be a very accurate test. I will buy again. ## 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. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sg/products/47985627-api-nitrate-test-kit-for-freshwater-and-saltwater-aquariums-90](https://www.desertcart.sg/products/47985627-api-nitrate-test-kit-for-freshwater-and-saltwater-aquariums-90) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-08-06*