Calcium hydroxide for the production of kalkwasser. (the saturated solution contains 900 mg Ca/l), adds calcium to the aquarium. Additionally Phosphates will be precipitated. Application: Please interfere 1 measuring cup (~ 7 g) of Calcium...

TEC 1 NG - 1 - channel dosing pump The Grotech TEC1NG is a microprocessor controlled dosing pump for the automatic dosing of liquids. This dosing pump was designed to supply the seawater aquarium as...

Precision density hydrometer to determine salinity. Includes: Density hydrometer 260mm long + measuring cylinder

Liquid filtering medium. ReefClear is a liquid filtering medium, consisting of natural Minerals which is able to bind fast and effectively organic compounds in the Aquarium water. ReefClear removes heavy metals, ammonium, medicine arrears, pesticides,...