The API Reef Master Test Kit 550 Tests is a comprehensive reef aquarium test kit designed to monitor the most critical water parameters in marine and reef systems. This all-in-one kit tests calcium (Ca), carbonate hardness (KH), phosphate (PO₄), and nitrate (NO₃), helping you maintain the precise water conditions required for coral growth and reef stability.

With up to 550 tests per kit, this test kit provides exceptional value and long-term monitoring capability, making it ideal for both new reef setups and established systems. Regular testing allows you to maintain proper nutrient balance, prevent algae issues, and support healthy coral development.

Key Features

• Complete reef test kit for essential reef parameters
• Up to 550 tests for long-term use
• Tests calcium, KH, phosphate, and nitrate
• Helps maintain stable reef water conditions
• Supports coral growth and overall reef health
• Easy-to-use liquid tests with clear colour charts
• Trusted API quality for reliable performance

Compatibility

Suitable for:

• Saltwater reef aquariums
• Coral systems and marine tanks
• New reef setups and established aquariums
• Routine water testing and nutrient management

How to Use

Use the included test solutions and follow instructions to test each parameter. Compare results to the provided charts and test regularly to maintain optimal reef conditions.