Fritz RPM Liquid Magnesium

Fritz RPM Liquid Magnesium – Ionic Magnesium Supplement

Fritz RPM Liquid Magnesium is formulated from high-purity magnesium chloride and sulfate, essential for stabilizing calcium and alkalinity in marine aquaria. It ensures proper reef tank chemistry and supports coral, invertebrate, and algae health.

Key Features

• Highly concentrated—1 mL increases Mg by ~18 ppm per US gal (5 mL per 10 gal → +9 ppm)
• Contains no EDTA, gluconate, or organic chelators—pure and reef-safe
• Supports a target magnesium range of 1,280–1,400 ppm
• Formulated for manual or automated dosing, compatible with other Fritz RPM Elements
• Room-temperature shelf-stable; no refrigeration needed

Dosage & Usage

• Shake well before use
• Increase magnesium by adding 10 mL per 10 gal per day until desired range reached; then dose daily or weekly as needed
• Do not exceed 5 mL per 1 gal per day
• Add to high-flow or sump area for best mixing
• If overdosed, increase aeration or perform a small water change if livestock shows stress

Available Sizes