Fritz RPM Liquid Magnesium
Magnesium plays a critical role in marine aquariums by maintaining a balance between calcium and alkalinity. It is impossible to maintain calcium and alkalinity at the proper levels without also maintaining magnesium. A proper magnesium level is also critical for the health and vitality of many reef aquarium inhabitants.
The biologically useful forms of magnesium used in Fritz RPM Liquid Magnesium are utilized in the growth and development of many corals, invertebrates and beneficial calcareous algae. Fritz RPM Liquid Magnesium is formulated using only the highest purity magnesium chloride and magnesium sulfate in a balanced ratio, helping the aquarist to maintain the correct ratio of chloride to sulfate ions found in natural seawater.
| Guaranteed Analysis | Magnesium |
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FAQ
What is the recommended dosage for Fritz RPM Liquid Magnesium?
Please contact customer service
Is Fritz RPM Liquid Magnesium safe for all types of marine life?
Yes, it is formulated to support the health of corals, invertebrates, and beneficial calcareous algae in reef aquariums.
What is the source of magnesium in Fritz RPM Liquid Magnesium?
The product uses only the highest purity magnesium chloride and magnesium sulfate in a balanced ratio.


Justin Ross –
I’ve been using Fritz RPM Liquid Magnesium for three months now and have noticed a significant improvement in coral coloration and growth. The water parameters stay stable, and my tank feels more balanced. Easy to mix and consistent results.
Anna Churchill –
The magnesium levels in my reef tank have remained stable without frequent adjustments. It works well with my existing calcium and alkalinity supplements. No issues with compatibility or cloudiness.
Irene Buckland –
This product has helped me maintain proper magnesium levels even during seasonal changes. My anemones are more active and my polyps are healthier than before. Highly recommended for reef keepers.