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🌊 Master your reef’s health like a pro — because your corals deserve the best!
The API REEF MASTER TEST KIT is a specialized aquarium water test kit designed exclusively for reef tanks. It accurately measures four critical water parameters—calcium, carbonate hardness, phosphate, and nitrate—using color-coded test solutions and cards. This kit empowers reef enthusiasts to maintain optimal water conditions, preventing harmful algae blooms and fish diseases, ensuring vibrant coral growth and a thriving underwater ecosystem. Compact and easy to use, it’s the go-to choice for weekly monitoring and troubleshooting in reef aquariums.


















| ASIN | B001D6Z7QW |
| ASIN | B001D6Z7QW |
| Best Sellers Rank | #1,758 in Pet Supplies ( See Top 100 in Pet Supplies ) #3 in Aquarium Test Kits |
| Brand Name | API |
| Color | Catnip |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,886) |
| Date First Available | July 25, 2005 |
| Date First Available | July 25, 2005 |
| Department | Unisex-Adult |
| Department | Unisex-Adult |
| Directions | Follow the instructional booklet directions for individual testing of each water parameter, and test weekly for best results. |
| Included Components | all |
| Is Discontinued By Manufacturer | No |
| Item Dimensions LxWxH | 7 x 5.75 x 4.75 inches |
| Item Package Dimensions L x W x H | 6.8 x 5.1 x 4.3 inches |
| Item Weight | 1.1 Pounds |
| Item model number | 402M |
| Item model number | 402M |
| Manufacturer | Mars Fishcare |
| Manufacturer | Mars Fishcare |
| Manufacturer recommended age | 1 month and up |
| Material | Plastic |
| Model Name | REEF MASTER TEST KIT |
| Number of Items | 12 |
| Product Dimensions | 7 x 5.75 x 4.75 inches; 1.1 Pounds |
| Size | Pack of 1 |
| Style | Reef |
| Target Audience Keyword | fish |
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