CarbonDoser For a targeted and very precise CO2 supply in freshwater aquariums, or into calcium reactors. Features an electronically controlled valve that produces one CO2 portion / CO2 bubble every 0.1 to 10 seconds. The number of bubbles / portions is adjustable from 10 per second to 1 every 10 seconds and the rate of delivery is constant to +/- 1/1,000th of a second.

AMS Zeolithes Marine 1000ml For clear and healthy water in your aquarium. Elimination of harmful substances. Reduces organic values.

Lime water mix 1000ml Lime water mix for sea water Available in 1000ml container.

Funnel for reactor/filter v1.1 - large opening - 90mm Easily refill your calcium reactor or fluidized bed filter. Large opening for media (70mm), suitable for diameters from 70mm to 190mm thanks to its supports. 3D printing - PLA or ABS - non-contractual color.

4 / 6mm adjustment valve Regulating valve for hose with a diameter of 4/6 mm. The tap can be used for both air and water (nitrate reducer and calcium reactor). High quality plastic guaranteeing a long service life. Easy to adjust flow rate with precision.

T Reduction 16/22 - 4/6mm Reduction T is used for the connection of bypass filters like p. ex. the nitrate reducer or the calcium reactor.

T Reduction 12/16 - 4/6mm Reduction T is used for the connection of bypass filters like p. ex. the nitrate reducer or the calcium reactor.

T Reduction 9/12 - 4/6mm Reduction T is used for the connection of bypass filters like p. ex. the nitrate reducer or the calcium reactor.

Media reactor 4.6kg 8-16mm (large) DVH Aquatic Calcium Reactor Media is a raw, natural re-occurring, biogenic, 99,8% pure calcium carbonate derived from marine aragonite. Its near chemical purity and size consistency making it the complete reactor media for all...

Media reactor 4.6kg 4-6mm (fine) DVH Aquatic Calcium Reactor Media is a raw, natural re-occurring, biogenic, 99,8% pure calcium carbonate derived from marine aragonite. Its near chemical purity and size consistency making it the complete reactor media for all...

NP-Minus BioPellets 3500ml Important: operating ONLY in a biopelletreactor or fluid bed filter ! The highly active NP-Minus BioPellets consist of 100% biodegradable polymers. These dissolve over a period of several months and act as a carbon source for aerobic bacteria and other microorganisms. The pellets act as a food source for these microorganisms....

NP-Minus BioPellets 500ml Important: operating ONLY in a biopelletreactor or fluid bed filter ! The highly active NP-Minus BioPellets consist of 100% biodegradable polymers. These dissolve over a period of several months and act as a carbon source for aerobic bacteria and other microorganisms. The pellets act as a food source for these...