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...

Bubble counter Grotech Diameter 50mm, Lenght 200mm with hose connectors and holder.

Magnesium pro (pellets) 1000g The addition for the calcium reactor for increase of the Magnesium content. In the marine water aquarium a great quantity of Calcium and Magnesium is required in order to achieve an optimum growth of corals and red lime algaes. By the normally used materials in the calcium reactor the Calcium content, however, will be...

Algae reactor AR-pro XL (pump included) Simple and effective natural nutrient control method that helps promote a healthy and thriving reef tank! The AR-Pro series incorporates a unique design that allows macro algae such as Chaetomorpha to grow with great yields, leading to the effective nutrient export of unwanted nitrates and phosphates. In addition to...

Algae reactor CAR-200 CAR-120 Algae Reactor Recommended for aquariums up to 600 l. Reactor capacity: 15.7 l. Consumption: 19 w. Recommended flow rate: 1000 l/h max. - Dimensions: 28x30x54 cm.

Algae reactor CAR-150 CAR-120 Algae Reactor Recommended for aquariums up to 400 l. Reactor capacity: 8.8 l. Consumption: 19 w. Recommended flow rate: 700 l/h max. - Dimensions: 22x24x54 cm.

Algae reactor CAR-120 CAR-120 Algae Reactor Recommended for aquariums up to 200 l. Reactor capacity: 5.6 l. Consumption: 19 w. Recommended flow rate: 500 l/h max. - Dimensions: 19x21x54 cm.

Algae reactor AR-pro L Simple and effective natural nutrient control method that helps promote a healthy and thriving reef tank! The AR-Pro series incorporates a unique design that allows macro algae such as Chaetomorpha to grow with great yields, leading to the effective nutrient export of unwanted nitrates and phosphates. In addition to nutrient...

Algae reactor AR-pro  M Simple and effective natural nutrient control method that helps promote a healthy and thriving reef tank! The AR-Pro series incorporates a unique design that allows macro algae such as Chaetomorpha to grow with great yields, leading to the effective nutrient export of unwanted nitrates and phosphates. In...

Algae reactor AR-pro S Simple and effective natural nutrient control method that helps promote a healthy and thriving reef tank! The AR-Pro series incorporates a unique design that allows macro algae such as Chaetomorpha to grow with great yields, leading to the effective nutrient export of unwanted nitrates and phosphates. In addition to nutrient...

Macroalgae filter MAB220 (MacroAlgenBreeder) Dimensions: 280 x 340 x 600 mm For aquariums up to 1800 liters Hose connections: Ø 19 mm LED tube: 28 Watts Pump not included Included: Grotech MacroAlgenBreeder MAB220 filter. LED tube (28 W)