Design for Hang-On and Sump Installations.  

Marine Labs are an excellent way of regular water testing.  

Use weekly to aid growth of hard corals, Calcareous and Coralline algae  

 A one shot supplement for a healthy balanced aquarium    

Calk is dosed by monitoring the calcium and alkalinity of aquarium water

Supplies all the nutritional requirements for marine invertebrates.  

Complete kit for hobbyists wishing to successfully grow hard and soft corals    

Use with Calk Kit Complete and balanced coral growth.    

Use regularly to increased coral and seaweed growth