NP-Minus BioPellets 500ml GROTECH

NP-Minus BioPellets 500 ml Grotech – biogranules for reducing nitrates and phosphates in marine aquariums

NP-Minus BioPellets Grotech are highly active biological granules, composed exclusively of biodegradable polymers. They dissolve gradually over several months and serve as a carbon source for aerobic bacteria and other microorganisms, thereby promoting the natural reduction of nitrates and phosphates in marine aquariums.

Main Features

Operating Principle

In a marine aquarium, metabolic cycles transform organic nitrogen and phosphorus compounds into inorganic nitrates and phosphates. NP-Minus biogranules provide an easily assimilable carbon source for adapted bacterial strains, promoting their development.

These bacteria consume nitrates and phosphates for their metabolism, forming a microbial biomass. This biomass is then mechanically removed, notably by the skimmer, allowing for a sustainable reduction of undesirable nutrients.

Installation and Usage Conditions

NP-Minus BioPellets must be used in a biopellet reactor or a fluidized bed filter. This type of filtration ensures strong oxygenation and constant abrasion of the biofilm, guaranteeing stable and continuous efficiency.

The use prevents or reduces the growth of cyanobacteria, as the bacteria colonizing the pellets compete with those responsible for undesirable proliferations.

Interaction with the Skimmer

When the fluidized bed filter is placed before the skimmer, the excess bacterial biomass is eliminated through skimming, carrying nitrates and phosphates out of the system. In aquariums without a skimmer or with installation after the skimmer, the organic matter produced can serve as a food source for aquarium inhabitants and corals.

Recommended Dosage

Use between 50 and 200 ml of NP-Minus BioPellets for 100 L of aquarium water, depending on the nutrient load. It is recommended to introduce the pellets gradually, in stages spaced about a week apart, starting with about 30% of the final dose.

This method helps avoid excessive bacterial proliferation that could lead to temporary water cloudiness.

Monitoring and Maintenance

The biogranules are generally consumed in 6 to 12 months. Regular replenishment is necessary, accompanied by monitoring of nitrate and phosphate concentrations to avoid too low values. The adjustment of the pellet quantity should always consider the type of aquarium and population.

In cases of high nutrient load, the complementary use of a phosphate adsorber can be beneficial.

Compatibility and Precautions

The use of UV lamps, ozone, sponge filters, or supports promoting bacterial destruction can reduce the effectiveness of NP-Minus BioPellets. Good water oxygenation and appropriate circulation are essential to ensure the safety of aquarium inhabitants.

Package Contents

1 container of NP-Minus BioPellets Grotech, total volume 500 ml.