What is Nitratelock?

Selective ion exchange resin for nitrates removal.

Nitratelock Composition:

Styrene anion resin with quaternary functional group in spherical beads form.


Nitratelock's Purpose

To be used in fresh and salt water aquariums (including reef aquariums) to remove large quantities of nitrates.

Benefits Of Nitratelock:

Rapidly removes and maintains extremely low to non-measurable levels of nitrates in tropical freshwater, fish only marine aquaria and reef aquariums. Long lasting, can be regenerated 100’s of times. Drastically reduces number of necessary water changes. Regeneration is accomplished with plain table salt, quickly and safely.

NitrateLock is a technical type product and must be used according to following principles. Failure to remove organics impacts performance.

1. Organics must be removed with fresh carbon prior to use of

resin. The carbon to remove organics must have been placed into tank 1

to 5 days prior to use of resin. Any carbon older than 5 days does not

remove organics effectively.

2. The carbon must be implemented in a manner that forces the water

through the carbon.

3. The NitrateLock must be implemented in a manner that forces the

water through the resin, not just around it.

4. The NitrateLock needs to be regenerated every 24 hours with

brine according to the instructions.

Is regenerated media as effective as the original?

Each regeneration slightly reduces the capacity of media. This said, keep in mind that the remaining capacity is more than sufficient to keep the nitrate levels at bay.

How do I regenerate Nitratelock?

Regeneration of the resin is accomplished by passing a flow of brine solution through the resin at a rate of 0.25 – 0.5 gallon per minute (1-2 quarts per minute). It can be accomplished effectively by using a plastic 0.5 Gal. water pitcher with 1/4” DIA hole drilled in the bottom.

1. Prepare a brine solution by dissolving 3.0 lb of table salt in 4 gal of chlorine free water warmed up to approximately 100 F;



2. Place the media bag with the Nitratelock inside a pitcher and fill the pitcher with brine solution;



3. Lift media bag with the Nitratelock in and out of the pitcher several times to fluidize, then leave it at the bottom of the pitcher. After the brine drains out of the pitcher, repeat steps 2 and 3 until all four gallons are used up;



4. Fill the pitcher with lukewarm chlorine free water to rinse the resin to remove brine residue. Lift media bag with the Nitratelock in and out of the pitcher several times, then leave it at the bottom of the pitcher. Continue rinsing to use two gallons of water total;



5. Drain, check the media bag for integrity and return Nitratelock to service.