New item Pay Now
Add this item to Cart for a combined free shipping deal
Click to enlarge photo

Listing Detail Tabs

De nitrate is an economical, natural, porous material with a pore distribution and geometry that promotes both aerobic nitrification within the first few millimeters of depth and anaerobic denitrification at the core.

The material has a high surface area and supports a high density of bacteria. Although de nitrate has capacity to trap nitrate, this, as with other nitrate retaining materials, such as certain zeolites and synthetic resins, is quite limited and the primary mechanism of nitrate removal is anaerobic.

Why is it so different? “Live” rocks or reef rocks remove nitrate by anaerobic denitrification. de nitrate removes nitrate by the same process. Efficiency is magnified several folds by forcing the water to filter through the porous de nitrate. As with reef rock, anaerobic conditions are achieved by the porosity and the depletion of oxygen by the aerobic process at the surface. Excessive flow rates should, therefore, be avoided, as they may impede development of an adequate anaerobic environment to support denitrifying bacteria.

De nitrate is also an excellent media for aerobic nitrification and it makes an ideal biological filter in drip trays, canister filters, sumps, or even box filters. At high flow rates (greater than 400lph), it will function solely as an aerobic filter. At slow flow rates (less than 200Lph it will function as both an aerobic filter and an anaerobic denitrifying filter.

Directions

For best results, de*nitrate should be placed to assure the flow of water through it, such as in a canister filter, chemical filtration module, or box filter. Flow rate should not exceed 200 L per hour. Each 1L of de*nitrate treats about 200-400 L

...............................­.................................­.................................­.........................

To combine shipping on items simply select the highest shipping rate of your chosen items and choose the combined shipping option for additional purchases. (Items must be purchased at the same time) Please click here to ask a question
Your question and answer privileges have been disabled.
You must log in to view questions and answers on this listing. We recommend reading questions before you make any purchases.
You must log in to ask or answer questions posted. We recommend reading questions before you make any purchases. Available only to approved bidders. You must be an authenticated member to ask questions Find out more about becoming authenticated. Your account is in debt Your current account balance is You must credit your account to use this feature.
Firearms licence #
Firearms licence holder name
First name is required
Last name is required
.
Your current account balance is Please note you will lose your question and answer privileges if your account is in debt for more than 2 weeks. Credit your account.
I confirm that I am over 18 years old.
To prevent your personal details being misused please do not put emails or phone numbers in questions. Failure to comply may result in the suspension of your account. The seller cannot add a Buy Now price once bidding has started.

Shipping options

Buy more than one of this item and only pay for shipping once.
  • 1-3 Business days nationwide (Target time frame)$4.90
  • Highest shipping paid on another auction. Combined$0.00
  • Store does not allow pick-ups
  • Store location: Christchurch City, Canterbury, NZ

Payment options

  • Other options
    NZ bank deposit

Pay Now includes:

Buyer Protection Learn More