--- product_id: 1627375 title: "REEF MASTER TEST KIT Reef Aquarium Water Test Kit 1-Count" price: "Rp1929478" currency: IDR in_stock: true reviews_count: 13 url: https://www.desertcart.id/products/1627375-reef-master-test-kit-reef-aquarium-water-test-kit-1 store_origin: ID region: Indonesia --- # Accurate & easy-to-read results 4 vital reef water tests Weekly monitoring for reef health REEF MASTER TEST KIT Reef Aquarium Water Test Kit 1-Count **Price:** Rp1929478 **Availability:** ✅ In Stock ## Summary > 🌊 Master your reef’s chemistry, because your corals deserve the best! ## Quick Answers - **What is this?** REEF MASTER TEST KIT Reef Aquarium Water Test Kit 1-Count - **How much does it cost?** Rp1929478 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/products/1627375-reef-master-test-kit-reef-aquarium-water-test-kit-1) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted Legacy:** Backed by API’s 60 years of expertise in premium aquarium care - • **Precision Reef Care:** Monitor Calcium, KH, Phosphate & Nitrate with lab-grade accuracy - • **User-Friendly Testing:** Simple drop tests with clear color cards for quick, confident readings - • **Complete Kit Essentials:** Includes 7 solution bottles, 4 capped test tubes, and 2 color cards for all tests - • **Proactive Aquarium Health:** Detect invisible water issues early to prevent fish loss and algae blooms ## Overview The API REEF MASTER TEST KIT is a comprehensive water testing solution designed exclusively for reef aquariums. It accurately measures four critical parameters—Calcium, carbonate hardness (KH), phosphate, and nitrate—that directly impact coral growth and fish health. The kit includes all essentials for easy, weekly monitoring, helping hobbyists prevent harmful water imbalances and maintain a thriving reef environment. Trusted by thousands with a 4.6-star rating, this kit combines precision, simplicity, and API’s six decades of aquarium expertise. ## Description Measure the most important reef aquarium levels including calcium, carbonate hardness (KH), phosphate and nitrate with API REEF MASTER TEST KIT. Proper balance is key to the overall health of reef inhabitants. Corals and reef invertebrates like shrimp, crabs and encrusting algae require calcium to grow and proper levels of carbonate hardness to prevent harmful fluctuations in pH. Excess phosphate, which comes from fish waste, uneaten food and other decaying organic matter as well as tap water, can cause algae blooms and affect healthy growth of hard corals. High nitrate levels from fish waste and organic compounds can cause fish disease and algae blooms. The API REEF MASTER TEST KIT comes with four different tests that are specifically calibrated to measure these levels in reef aquariums. Just fill the test tubes, add the test drops and compare results to the color card. Then follow the recommendations on the card if action is required. With API aquarium products, it’s easy to keep a beautiful saltwater, freshwater or reef aquarium. For almost 60 years API has developed premium solutions with proven and effective results for your family and ours. API offers a range of testing kits, water conditioners, and nutritionally superior food, because we’re dedicated to making a better underwater world. They work to provide a safe, hospitable environment for fish such as tropical community fish, cichlids, goldfish and more. At API, we understand the rewards and relaxation of fishkeeping because we have a passion for fish too. Review: Great beginner kit - Great basic test kit, fairly easy to read results. A couple of the tests can use quite a bit of drops and I wish they were bigger bottles but at least they can be purchased separately. I find that the less I mess with my tank the healthier it is. This helps me keep an eye on things:) Review: Great beginner test kit! - I'm a reef novice. This is a great reef aquarium test kit for beginners. It's very easy to use thanks to the detailed instructions that educate you on what each water parameter affects in your reef aquarium, and you don't even have to convert any units of measurement when using it. So far I've gotten accurate readings. I'm very satisfied and will continue to use API products, particularly this water test kit. ## Features - Contains one (1) API REEF MASTER TEST KIT Reef Aquarium Water Test Kit 1-Count, including 7 bottle of testing solution, 2 color cards and 4 test tubes with cap - Helps prevent invisible water problems that can be harmful to fish and cause fish loss - Accurately monitors 4 most vital water parameters levels in reef aquariums: Calcium, carbonate water hardness, phosphate and nitrate - Designed for use in reef aquariums only - Use for weekly monitoring and when water or fish problems appear ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 4.6 out of 5 stars 1,897 Reviews | ## Images ![REEF MASTER TEST KIT Reef Aquarium Water Test Kit 1-Count - Image 1](https://m.media-amazon.com/images/I/71pA4OBzuXL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great beginner kit *by R***D on July 30, 2026* Great basic test kit, fairly easy to read results. A couple of the tests can use quite a bit of drops and I wish they were bigger bottles but at least they can be purchased separately. I find that the less I mess with my tank the healthier it is. This helps me keep an eye on things:) ### ⭐⭐⭐⭐⭐ Great beginner test kit! *by J***. on July 4, 2016* I'm a reef novice. This is a great reef aquarium test kit for beginners. It's very easy to use thanks to the detailed instructions that educate you on what each water parameter affects in your reef aquarium, and you don't even have to convert any units of measurement when using it. So far I've gotten accurate readings. I'm very satisfied and will continue to use API products, particularly this water test kit. ### ⭐⭐⭐⭐⭐ Good product. *by A***2 on October 26, 2025* Good product. ## Frequently Bought Together - API Reef Aquarium Master Test Kit, multicolor, 14 Count (Pack of 1) - Seachem Ammonia Alert, Aquarium Test Colour Changing Indicator - Seachem Prime 100 Ml, Tap Water Conditioner For Fresh & Salt Aquarium --- ## 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.id/products/1627375-reef-master-test-kit-reef-aquarium-water-test-kit-1](https://www.desertcart.id/products/1627375-reef-master-test-kit-reef-aquarium-water-test-kit-1) --- *Product available on Desertcart Indonesia* *Store origin: ID* *Last updated: 2026-09-11*