Seachem de*nitrate 100mL

Seachem de*nitrate 100mL is a highly porous biological filter media designed to support beneficial bacteria and help reduce nitrate in freshwater and marine aquariums.

Its porous structure provides surface area for both aerobic and anaerobic bacteria. When water passes through the media slowly enough, de*nitrate can support denitrifying bacteria that naturally consume nitrate, making it a useful option for aquariums where additional nitrate control is needed.

Seachem de*nitrate at a Glance

• Highly porous biological filter media
• Helps support nitrate reduction under low-flow conditions
• Supports aerobic and anaerobic beneficial bacteria
• Suitable for freshwater and marine aquariums
• Can be used in canister filters, sumps, box filters and filtration chambers
• Does not become exhausted like conventional chemical filter media
• 100mL pack

How Does Seachem de*nitrate Work?

Seachem de*nitrate provides a highly porous surface for beneficial bacteria. Aerobic bacteria colonise the outer areas of the media and use available oxygen as part of normal biological filtration.

Deeper inside the porous media, lower-oxygen conditions can develop. These areas can support anaerobic bacteria involved in denitrification, helping convert nitrate into nitrogen gas.

For nitrate reduction, flow through the media is important. Seachem recommends keeping the flow rate through de*nitrate below approximately 200 litres per hour. At higher flow rates, it will continue to work as biological filter media but will function mainly as an aerobic filter.

How to Use Seachem de*nitrate

Place de*nitrate where aquarium water is forced through the media, such as in a canister filter, filtration chamber, sump or box filter.

For best nitrate-reducing performance, keep the flow through the media below approximately 200 L/hour. If your filtration system has a much higher flow rate, Seachem recommends using a suitable lower-flow chamber or alternative biological media designed for higher-flow applications.

Pre-filtering the water with sponge or filter floss can help prevent detritus from clogging the pores of the media and extend its useful life.

Does Seachem de*nitrate Need to Be Replaced?

No routine replacement is normally required. Seachem de*nitrate is biological filter media and does not become exhausted over time in the way that many chemical filtration products do.

The media can, however, become clogged with detritus or organic material. Good mechanical pre-filtration can help keep it clean and maintain effective water flow.

Freshwater and Marine Aquarium Use

Seachem de*nitrate can be used in both freshwater and marine aquariums. It is particularly useful where you want additional biological filtration while also providing conditions that can support nitrate reduction.

For aquariums with persistently high nitrate, de*nitrate should be used alongside good aquarium maintenance, appropriate stocking, regular water changes and effective mechanical and biological filtration.

Frequently Asked Questions

What is Seachem de*nitrate used for?

Seachem de*nitrate is a biological filter media used to support beneficial bacteria and help reduce nitrate in freshwater and marine aquariums when used under suitable low-flow conditions.

Does Seachem de*nitrate remove nitrate?

It can help reduce nitrate by providing porous areas that support anaerobic denitrifying bacteria. Effective nitrate reduction depends on maintaining sufficiently slow water flow through the media.

What flow rate should I use with Seachem de*nitrate?

Seachem recommends keeping flow through the media below approximately 200 litres per hour when nitrate reduction is the goal. At higher flow rates, de*nitrate functions mainly as aerobic biological filter media.

Does Seachem de*nitrate need to be replaced?

No. de*nitrate is biological filter media and does not normally become exhausted. It may need cleaning if detritus or slime begins to clog the media.

Can Seachem de*nitrate be used in freshwater aquariums?

Yes. Seachem de*nitrate is suitable for freshwater aquariums as well as marine systems.

Where should Seachem de*nitrate be placed in the filter?

Place it where aquarium water is forced through the media, such as inside a canister filter, sump, filtration chamber or box filter. Mechanical pre-filtration with sponge or filter floss can help reduce clogging.

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