Fritz RPM Liq Calcium Buffer System

Fritz RPM Liq Calcium Buffer System – Part 2: Calcium Supplement

Fritz RPM Part 2 Calcium is a high-purity liquid calcium chloride solution formulated to support healthy coral growth, shell formation, and skeletal development in marine aquaria. Designed to be paired with Part 1 Alkalinity, this system ensures balanced water chemistry without introducing untested trace elements or metals.

Features & Benefits

• Highly concentrated—1 mL raises calcium by ~15 ppm in 1 US gal
• Clean formula containing only deionized water and calcium chloride
• Compatible with RPM Part 1 alkalinity supplement for ideal ionic balance
• Safe for use with livestock when dosed according to guidelines
• Great for precise dosing systems or manual supplementation

Directions & Dosage

• Initial adjustment: Each 1 mL increases Ca by ~15 ppm per US gal; 1 tsp (5 mL) → ~7 ppm in 10 gal
• Do not exceed: 10 mL per 10 gal in a 24-hour period
• Routine dosing: Once alkalinity is adjusted (8–11 dKH), start with 5 mL each of Pt 1 and Pt 2 per 20 gal daily
• Test calcium daily; maintain ~400–450 ppm; adjust dosage as needed
• If magnesium is low, use RPM Liquid Magnesium before adjusting Ca and alk

Sizes & Coverage