🐚 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.

⭐ Key Benefits

🐚 Supports Shell Strength & Color
Helps maintain strong, healthy shells and vibrant coloration.

🦐 Ideal for Shrimp & Snails
Perfect for freshwater shrimp, Ramshorn snails, Mystery snails, and more.

🦀 Great for Crabs & Crayfish
Provides essential minerals that support molting and exoskeleton development.

💧 Perfect for Soft Water Tanks
Helps supplement mineral content in RO, DI, and soft tap water systems.

🌱 Biofilm-Friendly Surface
Textured rocks promote natural grazing behavior.

⏳ Extended 4 oz Supply
Longer-lasting mineral support compared to smaller portions.

🐠 Ideal For

• Freshwater shrimp (Neocaridina, Caridina, Amano, etc.)

• Ramshorn, Mystery, Nerite & other freshwater snails

• Freshwater crabs & crayfish

• Community aquariums and species-specific tanks

🧪 Ingredients

Natural calcium and magnesium mineral rock blend.

🥄 Directions for Use

• Rinse rocks before placing in the aquarium

• Add directly to the tank or near feeding areas

• Replace as minerals gradually dissolve

• Safe to leave in the aquarium continuously

📦 Product Details

• Net Weight: 4 oz (113 g)

• Form: Natural mineral rocks

• Use: Freshwater aquariums

• Purpose: Mineral supplementation & biofilm surface

⚠️ Important Notice

• NOT FOR HUMAN CONSUMPTION

• Natural variation in size, shape, and color may occur

Why Choose This 4 oz Size?

The 4 oz extended supply is ideal for aquarists with larger tanks, higher stocking levels, or those looking to reduce how often minerals need to be replenished. It also pairs perfectly with complete diets and snail foods for a well-rounded care routine 🐌🐚