Hanna Deionized Water Calcium Additive They are made from the

They are made from the same material as our popular ceramic frag plugs and are fired at nearly 2000 degrees in a high temperature kiln making them 100% inert and safe for your reef

giving it a bold new appearance

New Life Spectrum® AlgaeMax

Efficiency improvements reduce the demands on active cooling for longer component life

A textured surface helps speed the spread of coralline algae and give each hub a more natural look in your aquarium

Hanna Deionized Water Calcium Additive They are made from theThe biggest complaint about the Hanna Calcium Checker is that the test results are not accurate. If the fresh water source is not pure, it can cause irregular readings and using Hanna's Deionized Water will help prevent that from happening. This Ultra Pure deionized water that keeps your titration tests accurate is also good for any other type of test that requires dilution of the sample before titration.