ReefKalk - Hydroxyde de calcium 400g ReefKalk - Calcium hydroxide 400g, description and features: Source of calcium hydroxide for the preparation of limewater or Kalkwasser. It provides calcium and maintains alkalinity for better growth of soft and hard corals, mollusks, tubeworms and calcareous and coralline algae. It also...

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.

Substrat calcaire (aragonite) pour réacteurs à calcaire . 3.8kg - extra coarse L'aragonite ARM™ est un média ne contenant pas que du calcaire, on y trouve également des oligo-éléments: 275,200 ppm calcium 590,000 ppm carbonate 2,200 ppm strontium 2,000 ppm magnesium

Substrat calcaire (aragonite) pour réacteurs à calcaire . 3.8kg - fine L'aragonite ARM™ est un média ne contenant pas que du calcaire, on y trouve également des oligo-éléments: 275,200 ppm calcium 590,000 ppm carbonate 2,200 ppm strontium 2,000 ppm magnesium

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...

Substrat calcaire (aragonite) pour réacteurs à calcaire . 3.8kg - coarse L'aragonite ARM™ est un média ne contenant pas que du calcaire, on y trouve également des oligo-éléments: 275,200 ppm calcium 590,000 ppm carbonate 2,200 ppm strontium 2,000 ppm magnesium

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)