API Water Softening Pillow

API Water Softener Pillow – Aquarium Water Conditioning Media

Convenient filter media designed to reduce water hardness and support sensitive tropical fish

API Water Softener Pillow is a ready-to-use filter pouch that helps recreate natural soft water conditions inside the home aquarium. It works by removing hardness-causing minerals such as calcium and magnesium, along with soluble heavy metals including copper and iron.

This makes it especially suitable for soft water species that can struggle in hard tap water. In addition to improving water chemistry, the pillow also helps prevent the formation of white mineral scale on glass, decorations, and equipment.

How to Use

• Rinse the pouch under tap water before use.
• Place directly in the path of water flow inside your aquarium filter.
• Each use cycle lasts approximately 48 hours.

Recharging Instructions

• Mix 3 tablespoons of aquarium salt into 7 oz. of tap water.
• Rinse the pillow, then soak in the salt solution for 2 hours.
• Return directly to the filter after soaking (no rinsing required).
• When not in use, store the pillow in the recharging solution and do not allow it to dry out.

Key Benefits

• Softens hard aquarium water naturally
• Removes calcium, magnesium, and heavy metal ions
• Helps protect delicate soft water fish species
• Reduces mineral residue on aquarium surfaces
• Reusable up to 4 times with proper recharging

Suitable For

• Freshwater tropical aquariums
• Soft water fish species
• General water conditioning and hardness control