BioPelletReactor BPR-100 incl. 500 ml pellets up to 1000 l filter for external operation or in the filter sump

BPR-100 - BioPellet Reactor - Filter for external operation or in the filter sump.

BPR-100 for aquariums up to 1000 l.
Size 150 x 180 x 480 mm
Hose connections 16mm
Volume 2300ml
Max. capacity approx. 1400ml BioPellets

How biopellets work:
The highly effective NP-Minus BioPellets are made from 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 represent a food source for these microorganisms. Together with the nitrate and phosphate, which are usually in excess in the aquarium water due to metabolic processes, microbial biomass is formed.

Description of the more precise mode of action of NP-Minus BioPellets:
In various metabolic cycles that take place in the aquarium, organic nitrogen and phosphorus compounds produce inorganic nitrate and phosphate components. The biochemical processes that lead to their breakdown with the help of the NP-Minus BioPellets require a lot of oxygen. The increased oxygen requirement results from their metabolism by suitable bacterial strains, which use the carbon in the BioPellets as energy suppliers. It is therefore advisable to use the NP-Minus BioPellets in a fluidized bed filter or pellet reactor. On the one hand, this ensures the required aerobic conditions and, on the other hand, the biofilm that gradually forms on the pellets is reliably and continuously rubbed off by the turbulence in the filter. It takes several weeks for these processes to get going, i.e. for sufficiently large bacterial populations to grow. The use of NP-Minus BioPellets can also prevent or curb the unsightly growth of cyanobacteria, as the bacteria living on the BioPellets compete with the "red slimy algae".

There are now two methods of removing or using this nitrate and phosphate, which are now immobilized from the water cycle. In the former, the fluidized bed filter is installed in front of the protein skimmer. The excess biomass released by abrasion in the filter is skimmed off and the unwanted nitrate and phosphate are successfully removed from the aquarium cycle.

In aquariums without a protein skimmer or with a filter installed after the protein skimmer, the organic components created in the fluidized bed filter are available as food to the filtering aquarium inhabitants and corals. Furthermore, in anaerobic aquarium areas, additional biofilms of anaerobic bacteria arise to a smaller extent, which remove nitrogen components from the aquarium water through its denitrification. If the oxygen-enriched water coming from a skimmer is fed to the fluidized bed filter, this has the advantage that it always has enough freshly aerated water available.

Regardless of the arrangement of the fluidized bed filter component, it is generally important that
The various bacterial strains that settle on the pellets receive the oxygen that is absolutely necessary for their extremely efficient breakdown of pollutants.
It is important to ensure sufficient gas exchange, especially in the dark phase of the aquarium at night. This can be ensured through ventilation (e.g. through the skimmer) combined with sufficient water movement. This is also important for all other aquarium inhabitants so that there is no risk of a dangerous loss of oxygen in the aquarium water.

Basically, the way the NP-Minus BioPellets work is different than that of denitrification filters or the vodka method. Both use either nutrient sources bound to plastics or alcohol to use nitrate as an oxygen source for bacterial metabolic processes under anaerobic conditions. Nitrate is gradually reduced to atmospheric nitrogen and can thus escape from the aquarium.

A disadvantage of the vodka method, which works without a special filter, is that the anaerobic bacteria form biofilms on all surfaces of the aquarium. This could potentially cause pipes and hoses to become clogged or lead to unsightly bacterial deposits on the aquarium decorations or the glass panes. An uncontrolled high level of alcohol entering the aquarium, caused for example by dosage errors, results in symptoms of poisoning that can even lead to the death of the aquarium inhabitants. The vodka filter is also time-consuming because the amount of alcohol must be dosed daily and adjusted over time depending on the aquarium conditions.

GroTech NP-Minus BioPellets are the perfect solution for safely reducing excessive nitrate and phosphate levels. The performance of our pellets proves to be very beneficial for the successful maintenance of the aquarium community, especially in aquariums with a high nutrient load due to the necessarily strong additional feeding of azooxanthellate invertebrates or in aquariums with a high fish population.

Dosage:
50 to a maximum of 200 ml NP-Minus BioPellets per 100 liters of water, depending on the nutrient load of the aquarium water.
Important: In order to safely prevent a bacterial bloom in the first few days after starting to use NP-Minus BioPellets, we recommend adding the pellets gradually at intervals of around a week. Preferably start with about 30% of the amount normally required and then gradually increase the dose. This ensures that the amount of pellets is adapted to the growing bacterial population, thereby avoiding unsightly water cloudiness.

In any case, the possibility of a bacterial bloom only occurs almost exclusively when the initial water contamination with nitrate exceeds a concentration of 20 mg nitrate per liter.

The BioPellets cannot be overdosed within the specified dosage amount. If a fluidized bed filter or pellet reactor works reliably after a few weeks, the bacterial populations on the pellets regulate themselves depending on the nitrate and phosphate supply. If the harmful nutrient load in the aquarium water increases, the bacteria react with a corresponding increase in individuals. If the nitrate and phosphate concentrations decrease, the number of microbes also decreases.

Since the pellets are usually used up after six to twelve months, regular re-dosing is necessary. At the same time, it is advisable to measure the nitrate and phosphate levels in the aquarium to ensure that they do not fall to values ​​that are too low. If the nitrate level in the aquarium increases again, it is time to add fresh BioPellets again. Unfortunately, precise information on the dosage is not possible because the amount of BioPellets that needs to be used depends very much on the type of aquarium, its stocking size and therefore the feed input.

If fish or invertebrates are fed very heavily, it will be advantageous to also use a phosphate adsorber in a universal filter, as the excessive phosphate input may not be able to be managed by the bacterial cultures alone.

The use of UV lamps and ozone devices lengthens the run-in phase and has a negative effect on bacterial populations in the fluidized bed filter. Bacterial biomass released into the filter basin or aquarium through abrasion can be killed using the above equipment before skimming using a protein skimmer.
Filter sponges or other filter media that encourage the microbes to die also counteract the successful use of NP-Minus BioPellets. As a result, some of the unwanted nutrients previously bound in the bacteria find their way back into the water cycle. Such negative effects reduce the efficiency of the BioPellets used.

NP-Minus BioPellets for seawater to reduce nitrate and phosphate

Important:
Operation ONLY in the biopellet reactor or fluidized bed filter!

The highly effective NP-Minus BioPellets are made from 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 represent a food source for these microorganisms. Together with the nitrate and phosphate, which are usually in excess in the aquarium water due to metabolic processes, microbial biomass is formed.

Description of the more precise mode of action of NP-Minus BioPellets:
In various metabolic cycles that take place in the aquarium, organic nitrogen and phosphorus compounds produce inorganic nitrate and phosphate components. The biochemical processes that lead to their breakdown with the help of the NP-Minus BioPellets require a lot of oxygen. The increased oxygen requirement results from their metabolism by suitable bacterial strains, which use the carbon in the BioPellets as energy suppliers. It is therefore advisable to use the NP-Minus BioPellets in a fluidized bed filter or pellet reactor. On the one hand, this ensures the required aerobic conditions and, on the other hand, the biofilm that gradually forms on the pellets is reliably and continuously rubbed off by the turbulence in the filter. It takes several weeks for these processes to get going, i.e. for sufficiently large bacterial populations to grow. The use of NP-Minus BioPellets can also prevent or curb the unsightly growth of cyanobacteria, as the bacteria living on the BioPellets compete with the "red slimy algae".

There are now two methods of removing or using this nitrate and phosphate, which are now immobilized from the water cycle. In the former, the fluidized bed filter is installed in front of the protein skimmer. The excess biomass released by abrasion in the filter is skimmed off and the unwanted nitrate and phosphate are successfully removed from the aquarium cycle.

In aquariums without a protein skimmer or with a filter installed after the protein skimmer, the organic components created in the fluidized bed filter are available as food to the filtering aquarium inhabitants and corals. Furthermore, in anaerobic aquarium areas, additional biofilms of anaerobic bacteria arise to a smaller extent, which remove nitrogen components from the aquarium water through its denitrification. If the oxygen-enriched water coming from a skimmer is fed to the fluidized bed filter, this has the advantage that it always has enough freshly aerated water available.

Regardless of the arrangement of the fluidized bed filter component, it is generally important that
The various bacterial strains that settle on the pellets receive the oxygen that is absolutely necessary for their extremely efficient breakdown of pollutants.
It is important to ensure sufficient gas exchange, especially in the dark phase of the aquarium at night. This can be ensured through ventilation (e.g. through the skimmer) combined with sufficient water movement. This is also important for all other aquarium inhabitants so that there is no risk of a dangerous loss of oxygen in the aquarium water.

Basically, the way the NP-Minus BioPellets work is different than that of denitrification filters or the vodka method. Both use either nutrient sources bound to plastics or alcohol to use nitrate as an oxygen source for bacterial metabolic processes under anaerobic conditions. Nitrate is gradually reduced to atmospheric nitrogen and can thus escape from the aquarium.

A disadvantage of the vodka method, which works without a special filter, is that the anaerobic bacteria form biofilms on all surfaces of the aquarium. This could potentially cause pipes and hoses to become clogged or lead to unsightly bacterial deposits on the aquarium decorations or the glass panes. An uncontrolled high level of alcohol entering the aquarium, caused for example by dosage errors, results in symptoms of poisoning that can even lead to the death of the aquarium inhabitants. The vodka filter is also time-consuming because the amount of alcohol must be dosed daily and adjusted over time depending on the aquarium conditions.

GroTech NP-Minus BioPellets are the perfect solution for safely reducing excessive nitrate and phosphate levels. The performance of our pellets proves to be very beneficial for the successful maintenance of the aquarium community, especially in aquariums with a high nutrient load due to the necessarily strong additional feeding of azooxanthellate invertebrates or in aquariums with a high fish population.

Dosage:
50 to a maximum of 200 ml NP-Minus BioPellets per 100 liters of water, depending on the nutrient load of the aquarium water.
Important: In order to safely prevent a bacterial bloom in the first few days after starting to use NP-Minus BioPellets, we recommend adding the pellets gradually at intervals of around one week. Preferably start with about 30% of the amount normally required and then gradually increase the dose. This ensures that the amount of pellets is adapted to the growing bacterial population, thereby avoiding unsightly water cloudiness.

In any case, the possibility of a bacterial bloom only occurs almost exclusively when the initial water contamination with nitrate exceeds a concentration of 20 mg nitrate per liter.

The BioPellets cannot be overdosed within the specified dosage amount. If a fluidized bed filter or pellet reactor works reliably after a few weeks, the bacterial populations on the pellets regulate themselves depending on the nitrate and phosphate supply. If the harmful nutrient load in the aquarium water increases, the bacteria react with a corresponding increase in individuals. If the nitrate and phosphate concentrations decrease, the number of microbes also decreases.

Since the pellets are usually used up after six to twelve months, regular re-dosing is necessary. At the same time, it is advisable to measure the nitrate and phosphate levels in the aquarium to ensure that they do not fall to values ​​that are too low. If the nitrate level in the aquarium increases again, it is time to add fresh BioPellets again. Unfortunately, precise information on the dosage is not possible because the amount of BioPellets that needs to be used depends very much on the type of aquarium, its stocking size and therefore the feed input.

If fish or invertebrates are fed very heavily, it will be advantageous to also use a phosphate adsorber in a universal filter, as the excessive phosphate input may not be able to be managed by the bacterial cultures alone.

The use of UV lamps and ozone devices lengthens the run-in phase and has a negative effect on bacterial populations in the fluidized bed filter. Bacterial biomass released into the filter basin or aquarium through abrasion can be killed using the above equipment before skimming using a protein skimmer.
Filter sponges or other filter media that encourage the microbes to die also counteract the successful use of NP-Minus BioPellets. As a result, some of the unwanted nutrients previously bound in the bacteria find their way back into the water cycle. Such negative effects reduce the efficiency of the BioPellets used.