Seachem 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.

“Live” rocks or reef rocks remove nitrate by anaerobic denitrification. Seachem De Nitrate removes nitrate by the same process. Efficiency is magnified several folds by forcing the water to filter through the porous media. 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 it will function solely as an aerobic filter. At slow flow rates 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 200L per hour. If higher flow rates are unavoidable, use Seachem Matrix or Pond Matrix. It is best to rinse off dust before use. Once De Nitrate has been in use for several days, nitrate concentrations should start to fall and level off gradually at a concentration of about 4–5 mg/L. As long as nitrate concentrations remain under control, the product is not exhausted. Each 500ml of De Nitrate treats about 100–200L, depending on initial nitrate concentration and the current biological load. Enough should be used to remove nitrate at a rate at least as fast as the rate of formation. If very high nitrates are initially present, they should be brought down to less than 20 mg/L with water changes.

Available Sizes:
100ml, 250ml, 500ml, 1Ltr, 2Ltr & 4Ltr

Cut Off Time

Order by 2pm for same day dispatch - Monday to Friday (Excluding Bank Holidays)

Please Note: Direct/Palletised Delivery items may take longer.

Orders Under £49

Standard Delivery (2-3 working days) - £3.99
Express Delivery (1-2 working days) - £5.99.

Orders Over £49

Standard Delivery (2-3 working days) - FREE!
Express Delivery (1-2 working days) - £2.99.

Timeframes are for standard mainland UK addresses only excluding NI, Scottish Highlands & Islands.

Palletised Deliveries

Some large oversize products, typically items weighing more than 30kg, may require delivery via pallet and as such will arrive as a kerbside delivery only. The drivers in these instances are unfortunately not permitted to assist with the pallet beyond the drop off, and cannot aid in bringing packages into the property.

Pond Planet will contact you to book in delivery on a suitable working day. Delivery will generally take place between 9am and 5pm. To ensure there are no delays with delivery, please include a contact number when placing the order.

Pond Plant Deliveries & Surcharge

Pond plants are subject to a £5.00 delivery surcharge. Pond plants are sent directly from our supplier to make sure the plants you receive are fresh and in great condition. There is no limit on how many you can order for a single delivery charge. This charge is in addition to any other carriage costs for items sent directly from Pond Planet. Please allow 5 -10 working days for delivery.

Returns

If for any reason you are not satisfied with your purchase from Pond Planet, you may return the product(s) to us within 14 days of the purchase date for a refund or exchange.

Goods must be returned in perfect and unused condition, in their original packaging. The buyer must ensures that the goods are securely and adequately packed to avoid damage and the purchaser pays all postage costs. We recommend that products are returned by recorded delivery or by a carrier that requires a signature. Pond Planet accepts no responsibility for goods returned to us unless signed proof can be provided.