API Reef All-in-one Master Test Kit (Ca, KH, Po4, No3)

API® Reef Master Test Kit

The API® Reef Master Test Kit measures four critical water parameters—calcium, carbonate hardness (KH), phosphate, and nitrate—to help maintain a thriving reef aquarium. Regular testing ensures optimal conditions for corals, invertebrates, and marine fish.

Designed for speed and precision, this kit delivers accurate results with an easy-to-follow process, making routine water testing simple for both beginners and experienced aquarists.

Key Features

• Tests 4 essential reef parameters: calcium, KH, phosphate, and nitrate
• Fast, reliable, and easy-to-use testing process
• Supports healthy coral growth and overall reef stability
• Ideal for saltwater reef aquariums

What’s Included

• 7 test solutions
• 4 test tubes
• Color comparison chart
• Step-by-step instructional booklet
• Convenient holding tub for organized, reusable storage

Usage Tip
Test your aquarium water weekly to detect imbalances early and maintain a stable, healthy reef environment.