API Test Kits for Aquariums

Discover our selection of API test kits for freshwater and reef aquariums. A leading American brand since 1964, API offers reliable, easy-to-use, and economical tests for monitoring water quality. Essential for the health of your fish and corals.

Complete API Test Kits

• API Master Freshwater Test Kit - Complete 5-in-1 kit (pH, ammonia, nitrites, nitrates, high pH)
• Over 800 tests - Economical and sustainable

Essential Parameter API Tests

• API Ammonia Test Kit - Fresh and salt water, detects toxicity
• API Nitrate Test Kit - Fresh and salt water, nutrient testing
• API Nitrite Test Kit - Freshwater, Nitrogen Cycle
• API Phosphate Test Kit - Algae Prevention
• API Calcium Test Kit - Essential for Reefs
• API Copper Test Kit - Monitoring of drug treatments

API pH and Hardness Tests

• API pH Test Kit - Soft water, acidity measurement
• API pH Mini High Range - High pH for marine reefs
• API KH Test Kit - Carbonate Alkalinity
• API GH & KH Kit - General and Carbonate Hardness of Soft Water
• API pH Test Strips (25) - Rapid Test Strips

API Continuous Monitors

• Ammonia Alert - Ongoing ammonia monitoring
• pH Alert - Continuous pH Monitor
• Change color - Instant visual alert

Accessories

• AutoAqua Smart Stir - Intelligent mixer for precise testing

Why Choose API

API has been the world's best-selling aquarium test brand for over 60 years. Their kits are renowned for their reliability, ease of use, and affordability. The Master Test Kit is a must-have for every aquarist. API tests utilize the proven colorimetric method with comparison tubes. Perfect for beginners and experts alike.

Test Frequency

Test weekly in an established aquarium. Test daily during the initial cycling period (ammonia, nitrites, nitrates). Alert monitors provide continuous, effortless monitoring. Regular monitoring prevents problems and ensures the health of your aquatic inhabitants.

Secure delivery throughout Canada. Free delivery available depending on the order amount.