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August 16, 2022
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Short Description: Denitrate 1L
Item #: SC487
Manufacturer: Seachem
Category: Filter & Reactor Media*
Subcategory: Nitrate Control
Related Product: Activate Saltwater 32 oz Aquarium Starter and Cleaner
Substitute Product: BioMatrix Small Particle Biological Filter Media 750 ml LiveRock
Use product with: Activate Freshwater Gallon Aquarium Starter and Cleaner

 

Denitrate removes nitrates, nitrites, ammonia, and organics from both fresh and marine water. The high porosity of Denitrate supports the proliferation of both aerobic and anaerobic bacteria that further remove these toxic aquarium byproducts. Even when exhausted as an organic adsorbent, Denitrate continues to be an excellent support for the biological filter and does not have to be removed. This product is sold by volume. Cited weight is minimal weight.

DIRECTIONS: For best results, Denitrate 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 (50 gallons*) per hour. If higher flow rates are unavoidable, use Matrix or Pond Matrix. It is best to rinse off dust before use. Once Denitrate has been in use for several days, nitrate concentrations should start to fall and level off gradually at a concentration of about 4Ð5 mg/L as nitrate. As long as nitrate concentrations remain under control, the product is not exhausted. Each 500 mL of Denitrate treats about 100-200 L (25-50 gallons*), 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.

FAQ from Seachem
Q: How much nitrate will Denitrate remove?

A: It is recommended that if nitrate levels are very high that they be brought down to at least 20 ppm through water changes before using Denitrate. At that point Denitrate will bring the nitrate levels down to 4 Ð 5 ppm after several days of use. Since Denitrate, Matrix, and Pond Matrix are all biological support media, they do not actually ever exhaust, but they can grown less efficient with use by pore clogging. Prefiltering the water before it passes through these products will extend its useful life.

Q: Seachem website says that Denitrate can reduce nitrates in a direct water flow of 50 gph (or less). What makes Seachem Denitrate effective at a flow rate of, lets say 30-40 gph?

A:It is the porosity of this material that allows it to function at this rate of water flow. As water passes through this media, any oxygen is used by the aerobic bacterial that lives on the outer crust of this media. As water enters the inner crust of this media, it will come in contact with the bacteria groups that live in oxygen deficient conditions of the inner portions of this media that naturally consume and dispose of nitrate.

Q: You state that the flow rate through Denitrate should not be more than 50 gallons per hour, but most filters on the market flow much faster than that. How the heck do I get such a slow flow rate?

A: The best way to accomplish this is with the use of a flow through (aka dummy canister). Other alternatives include water restriction to a regular canister, placement in a sump, or a box filter with a restricted intake.


Type Use: Fresh & Saltwater
 
Sugg Price: $15.99
Our Price: $6.10
   


Other important information about this product:


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