Iodine&nbsp;Checker Gain confidence in your water testing results with our simple handheld colorimeter. Trust your readings now, our iodine colorimeter brings you more accurate technology than your average chemical test kit. Eliminate the struggle of determining colors visually, with our handheld colorimeter gives you digital iodine results directly.<br...

Calibration checking set for HI 784 ( ammonia )

Reagents for HI 784 (Ammoniac) - 25 tests

Ammonia&nbsp;Checker Why measure ammonia concentration in an aquarium? High ammonium values indicate disturbed or not yet fully balanced bacterial activity in the filter. Ammonia (NH3), forms from ammonium (NH4) at pH values above 7 and is particularly dangerous. Ammonia values of 0.02 mg/L are sufficient to cause long-term gill damage. [...]

Calibration checking set for HI 783 ( Magnesium )

Ion Director Multi-Reference Highly precise and stabilized reference solution for ION Director calibration and cross-checking. Max. tol. +/ - 1% Ca: 420 mg/l Mg: 1300 mg/l K: 390 mg/l Na: 10700 mg/l NO3 11 mg/l

Ion Director reference B&nbsp;500ml

Ion Director reference B 1000ml

Ion Director reference A&nbsp;1000ml

Ion Director reference A 500ml

Test ICP Fauna Marin SIMPLE, FAST AND PRECISE Fauna Marin's Reef ICP TOTAL test provides a quick and easy overview of 90 different measurement and relationship values ​​in seawater. From macroelements, trace elements, nutrients and pollutants, you get a comprehensive overview with corresponding dosage and action recommendations. With the REEF ICP...

API Calcium test kit API CALCIUM TEST KIT for Seawater API CALCIUM TEST KIT measures calcium levels down to 20 mg/L to help you keep your reef population healthy. <Calcium is one of the most important elements in a reef aquarium. Invertebrates, such as corals, crustaceans,...