Aqua Medic Kalkwasser Stirrer 1000 - For the production of Kalkwasser for saltwater aquaria. The Kalkwasser Stirrer 1000 stirs the kalkwasser so that the calcium carbonate sediment settles at the bottom of the Stirrer while the clear solution of calcium hydroxide is at the outlet where it can be transferred to the tank using the Niveaumat SP3000 (Automatic Top Off Unit with peristaltic pump and float switch)...

Brightwell Aquatics Kalk+2 Kalkwasser Supplement, 450 grams - Contains calcium, strontium, and magnesium in the same ionic ratios found in aragonite. This unique feature increases the usefulness of Kalk+2 to reef-building invertebrates such as corals, clams, calcareous algae, etc.

Aqua Medic Reefdoser Dosing Pump Twin - You can dose your saltwater or freshwater aquarium every second, minute, hour, day, or week if you choose.

Aqua Medic Reefdoser Dosing Pump Quadro - The Reefdoser can independantly control up to 4 dosing pumps. The interval controller allows for adjustment of the duration of the on/off cycle for each pump over a broad time span -from seconds to days...