One (Calcium Supplement) 500ml

One is a revolutionary calcium supplement for reef aquariums containing balanced levels of calcium, alkalinity and magnesium. It is a complete calcium system in a single bottle.

Traditional calcium supplementation methods such as calcium reactors and two-part systems can be confusing and troublesome. Additionally, they often require extra steps to correct ionic imbalances.

One was designed with simplicity and convenience in mind. Every addition made with One ensures balanced levels without building up any unwanted residual ions.

Proper dosing with One maintains water parameters of:

• 400 ppm Ca
• 1300 ppm Mg
• 7 dKH

Features:

•     Phosphate and silicate free
•     Does not elevate salinity
•     No residual ion build up over time
•     Does not contain insoluble calcium carbonate
•     Maintain pH around 8.1 - 8.2