API Calcium Test Kit – For Reef & Marine Aquariums

Product Overview

The API Calcium Test Kit is essential for maintaining healthy coral and invertebrate life in reef aquariums. This easy-to-use, mercury-free test accurately measures calcium levels from 20 mg/L, helping you avoid calcium deficiencies that can impact coral health and growth.

Whether you're a beginner or experienced reef keeper, this test kit ensures your aquarium maintains optimal calcium balance — a critical parameter for coral skeletal formation and invertebrate vitality.

Features & Benefits

• Accurate testing for calcium levels in marine and reef aquariums

• Supports coral, mollusk, crustacean, and algae growth

• Easy-to-read color chart and step-by-step instructions

• Mercury-free, safe for all reef inhabitants

• Includes: 2 test bottles, 1 glass test tube with cap, and color charts

• Ideal for weekly water testing routines

FAQ 

Do I need to test calcium in freshwater?

No, calcium testing is only necessary in reef or marine aquariums.

How often should I test?

For best results, test weekly or after major water changes.

How do I clean the test tube?

Rinse immediately after use with tap water (no soap). Use a small bottle brush for deeper cleaning if necessary.