NP Biopellets Filter Media 500ml

XB1113

This item has been discontinued.

NP Biopellets How it works
The positive effects of NP-reducing BioPellets on water quality are based on the principle of immobilization. Waste products from the water, mainly nitrate and phosphate, are converted into bacteria. This keeps the aquarium water clean.

NP-reducing BioPellets are composed of biologically degradable polymers that can be placed in a fluidized filter or filter canister. The pellets will allow aerobic growth of bacteria which consequently will consume nitrate and phosphate simultaneously. The bacteria will use up the carbon from the BioPellets, whilst nitrogen and phosphorus are taken from the water as nitrate and (ortho)phosphate. This conversion of organic BioPellets (together with inorganic nitrogen and phosphorus) into microbial biomass is called immobilization. In addition, anaerobic layers will develop, resulting in additional denitrification.

The surplus of bacteria will be consumed by filter and suspension feeding organisms such as sponges and corals, or skimmed off by a protein skimmer. On average this “solid wodka method” takes 2-4 weeks to give rise to sufficient bacteria to allow nitrate and phosphate levels to drop. The main advantage of this method over using Wodka or sugar as a carbon source is that NP-reducing BioPellets stimulate local growth of bacteria in a filter compartment, instead of all over in the aquarium where they may clog up pipes and hoses. They also prevent the growth of cyanobacteria, as the bacteria growing on NP-reducing BioPellets will compete with these phototrophic nuisance microbes. Finally, NP-reducing BioPellets will save the aquarist a lot of time, as no daily dosages of carbon are required.

Product guidelines
NP-reducing Biopellets can be placed in canister filters or fluidized reactors. The latter configuration may yield better results, and prevents detritus buildup. A proper starting dosage is 0.5-1 liter of pellets per 500 liters of system volume (12,5-25 fl. oz. for every 100 USG). After about 2-4 weeks, nitrate and phosphate levels should start decreasing. For some aquaria experiencing heavy feeding, higher dosages are appropriate. Examples are aquaria which house large quantities of azooxanthellate corals, sponges, tunicates or large schools of Anthias fish. Dosages may be increased indefinitely, provided the aquarium water is sufficiently aerated.

NP-reducing BioPellets are consumed by bacteria, which is why new pellets need to be added every 3-6 months to compensate for digested substrate. This can be seen during inspection of the filter. These figures however depend on aquarium conditions and are strongly influenced by feeding regimes and livestock. Taking regular measurements of both nitrate and phosphate levels in the aquarium is recommended, after which dosages may be increased or decreased.

We also suggest placing the outlet of the pellet filter in front of a protein skimmer, to limit the amount of bacteria entering the system. This has the additional benefit of increased gas exchange (CO2-removal and O2-addition). The pellets should never be used without sufficient aeration, as this may lead to low oxygen and pH levels, especially during night time. Proper aeration can be established with air pumps and protein skimmers.

When heavy feeding is required, it is recommended to combine the pellets with standard phosphate adsorbents. The reason for this is that most aquarium feeds contain higher levels of phosphate than is consumed by bacteria, fish and invertebrates, when compared to nitrogen. Some phosphate adsorbents however deplete alkalinity and may reduce pH. Using phosphate adsorbent media based on iron hydroxide does not have this disadvantage.

Important:
  • Maintain sufficient water flow through the BioPellets, to prevent production of hydrogen sulphide gas.
  • The use of ozone and UV will negatively affect bacterial recruitment of the BioPellets and increase the maturation time of the filter. Adding bacterial cultures may alleviate this problem and shorten filter maturation time in general.
  • When nitrate and phosphate are already very low before applying BioPellets, a decrease in these levels may not be detectable with standard aquarium testkits.



Product Manuals & Documentation

NP Biopellets Filter Media 500ml

Owner's Manual available for download in Adobe PDF file format

NP Biopellets Filter Media 500ml

Additional Info 1 available for download in Adobe PDF file format
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  • 3.2

11 Reviewers (64%) would recommend this

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5
5.0
Excellent product

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REVIEW
I was having problems with high nitrates and phosphates in 300 gal reef tank. I used GFO for a while, but get disappointed with all that mess. I also used some NOPOX additives, but with my tank size that was too expensive in the long run. I did a research and found some interesting posts relating ...Read More
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4
4.0
NP Bio pellets

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REVIEW
Product works great! Brings out the best in my skimmer.
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2
2.0
trying to be useful

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REVIEW
I have a fairly heavily stocked 180 gallon reef. I run a 100 micron filter sock, a euro-reef rs-180 alfa, 6 liters of Seachem Matrix in the sump, 250mL of Seachem Phosguard in a reactor, and 250mL of Seachem Purigen on a tray in my bubble trap. I use a tunze auto top off and dose kalk with it. I r...Read More
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3
3.0
need wts on these

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We can't compare value on these biopellet products without a weight. These are the most expensive per liter, but they may have more mass (material). I see they've changed their shape since I bought them from the inventor a while back. Not sure what that will do to performance yet. Will get back on t...Read More
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5
5.0
NP Biopellets

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REVIEW
There has been so much negative criticism of NP Biopellets on this review site. This is not a system you set-up and notice results immediately. However, many people do not report good results within three days or even three weeks. It has taken my NP Biopellet system 10 weeks to achieve acceptable...Read More
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1
1.0
nightmare

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i was running a aquaripure nitrate filter when i installed my new smr1 xl nextreef biopellet reactor with the np biopellets. was going well for a few days buy when i adjust the nitrate reactor it added to much bacteria /effluent to my tank and caused a huge bacteria bloom. killing a couple of invert...Read More
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4
4.0
NP Biopellets

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REVIEW
For my 100g DT I started out with 500ml. Immediately my PH started to drop quickly especially when my skimmer is stopped when I feed the tank. So if you have high nutrient levels in your tank before BP, start with a smaller BP volume than recommended, keep an eye on PH and on the fish, if PH drops r...Read More
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Overall, others give this:

  • 3.2

11 Reviewers (64%) would recommend this

Overall Rating:

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5  Star
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2  Star
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