Calcium (Ca2+) & Magnesium (Mg2+) Supplement PowerPads for Powerbox 400 releases Calcium and Magnesium ions to enhance and improve aquarium water quality.For best results:-
Always ensure good water flow through the filter pad.
Replace every 4 weeks, or before, if reduced levels of calcium and magnesium are detected in the water.
Must be used in conjunction with regular testing of water parameters.
Please note: Multiple PowerPads can be used together to enhance performance.