Product responsibility
Safety information for every Known Matter product.
Start with the product code on the label, then read the matching product guidance below. Always follow the product label and supplied directions. Product-specific documents can be requested from Known Matter.
General handling for all products
- Keep containers tightly closed, upright and dry.
- Avoid contact with eyes and avoid breathing dust.
- Use suitable eye protection and gloves.
- Keep away from children, animals, food and incompatible materials.
- Wash hands after handling.
Choose a product
Reef Aquarium Calcium Supplement Refill
Read the supplied preparation and safety directions before adding water.
Preparing the refill
Mixing either refill size with water creates substantial heat. Follow the directions supplied with that exact pack size, work in a suitable area and allow the container to cool completely before closing tightly, handling further or using the prepared solution. Do not interchange the preparation volumes.
Aquarium use
This refill prepares a calcium solution for reef aquarium maintenance. Test the aquarium water, follow the supplied directions and make adjustments gradually. Never add the dry refill directly to the aquarium.
- This is a calcium-only supplement; it does not replace alkalinity or magnesium testing and maintenance.
- Do not mix concentrated calcium and alkalinity supplements together.
- Add separately in a high-flow area and allow each supplement to disperse.
Exposure or emergency
Follow the product Safety Data Sheet. For urgent medical advice in Australia, contact the Poisons Information Centre on 13 11 26. Call 000 for a life-threatening emergency.
Product documents
For the current directions or product-specific safety documentation, email hello@known-matter.com with the product code and pack size.