Fritz Aquatics 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 supports reef-building organisms in forming skeletal material.
Key Benefits
- Maintains proper balance between calcium and carbonates without adding unwanted organic material such as EDTA, gluconate, or poly gluconate
- Highly concentrated ionic magnesium solution promotes healthy skeletal development in reef organisms
| Specification | Value |
|---|---|
| Form | Liquid |
| Active Ingredient | Magnesium |
| Concentration | Highly concentrated ionic solution |
| Application | Marine aquariums, reef tanks |
FAQ
What is the recommended dosage for Fritz Aquatics RPM Liquid Magnesium?
Please contact customer service
Can this product be used in a freshwater aquarium?
No, this product is specifically formulated for marine aquariums and should not be used in freshwater systems.
Does RPM Liquid Magnesium affect water pH levels?
No, it does not significantly affect pH. It primarily supports calcium and alkalinity balance without altering pH.


Bella Allan –
I’ve used this magnesium supplement for three months in my 120-gallon reef tank. The coral growth has improved noticeably, and my water parameters remain stable. No signs of cloudiness or algae issues. Easy to measure and mix into the water.
Gordon Vaughan –
The product works well in maintaining magnesium levels. I noticed better coloration in my polyps after consistent use. It’s a simple addition to my weekly maintenance routine.
James Ball –
I was worried about organic additives in other magnesium products, but this one is clean and free of EDTA or gluconate. My tank has stayed balanced without any spikes in calcium or alkalinity.