🐚 Calcium & Magnesium Rocks for Aquarium – 4 oz

 

Our Calcium & Magnesium Rocks – 4 oz (Extended Supply) are designed to provide long-lasting mineral support for freshwater aquariums, especially in soft or low-mineral water conditions. These natural mineral rocks slowly release calcium and magnesium to help support shell strength, coloration, and overall vitality in shrimp, snails, crabs, and crayfish.

The textured surface encourages natural biofilm growth, allowing aquatic animals to graze while benefiting from continuous mineral availability. Ideal for larger tanks, multi-species setups, or keepers looking for a longer-lasting mineral solution.