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Chemi Pure Elite - Boyd Enterprises

From $9.99

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Chemi-pure can be used with all water types as a chemical absorption filter and ion generator and exchange unit to positively keep pH at a perfect constant level. Also fantastic for use with African Cichlids and Discus! Needs replacement only every six months under normal circumstances. Use 1 unit up to 40 gallons, 2 units from 40 to 100 gallons, above 100 gallons add one unit for every 25 gals. 10oz. Contains 1/2 unit enough to treat 20 gallons.

Chemi-pure Elite formula now contains ferric oxide, that helps remove slime and PO4 (phosphates), giving your coral and fish a healthy environment to grow and live.

Soft corals - Crustose Coralline Algaes - Caulerpas - Gorgonias - Seafans - other invertebrates and fish of all species thrive and grow luxuriously with no water change necessary using real seawater or the better imported mixes. This is not a claim, but fact, experienced by thousands of CHEMI-PURE users. In fact, salt water fish have spawned repeatedly in 5 year old water. CHEMI-PURE does not remove trace elements and is the only filter medium which aids in the natural balance of positive and negative charges, with an emphasis on the beneficial negative ion. CHEMI-PURE comes packed in pure polyester filter bags in sealed plastic bottles, called 1 unit, one of which is recommended for up to 40 gallons of water, and which is completely active for 4-6 months with no `regeneration` or cleaning required and is cheaper than carbon or pads. The one filtration product we unreservedly recommend for use with CHEMI-PURE is the Poly-Filter, by Poly-Bio Marine! Use one pad above and one below the CHEMI-PURE bag. We also recommend the use of foam fractionation or "protein skimmers."

Does Chemi-pure remove trace element?

You do not have to worry about Chemi-pure removing trace elements and being a problem. Chemi-pure does contain some carbon and will remove trace amounts of some elements, but not to the extent where you would see any significant effects on any levels in your aquarium.

Will Chemi-pure raise my pH higher than it is now?

Chemi-pure works together with your waters chemistry to safely buffer an improper or low pH. It will not raise your pH from any level, but help keep it at a constant level for your aquarium.

Can I open the bag and separate the product to fit into my filter?

No, you should never cut open the bag and separate the product at all. The product ingredients do not mix evenly. If it is separated, you may not get the full benefits of the product as it is designed to do.

Where in my filter should I place the product?

Anywhere that you can put the product so it has a substantial flow of water going through the bag will do just fine. If you place in a canister filter, put a little bit of filter floss below and above the product to take up some extra room and give a nice fit.


  • LONGER LIFE - Fish often live three to four times longer than in any other closed system, fresh or marine.
  • NECESSARY ORGANISMS - Allowed growth with no danger of pollution.
  • REMOVES TOXIC ELEMENTS - Including Copper & Phenol
  • IMMEDIATE ACCLIMATION - with ravenous appetite
  • QUICKER RESPONSES - Neurological reactions like fishes in natural habitat
  • FRESHWATER FISHES - of all species thrive
  • NO WATER CHANGE NECESSARY - for at least 5 years (length of test only) PERHAPS NEVER!
  • CRYSTAL CLEAR WATER - Always sparkling blue-white water
  • NO CLEANING - Necessary for health of fish.
  • CONSTANT pH - Always within the safe range
  • NO OSMOTIC SHOCK - 90% eliminated
  • ECONOMICAL - Replacement only every six to eight months makes initial cost very low - eliminates expensive water changes - fewer losses.

Comparison Chart


Tank Type



Granulated carbon, ion exchange resins Any light bioload freshwater
and saltwater aquarium
Clear and contaminant-free water

Chemi-Pure Elite

Granulated Carbon, ion exchange resins,
and granulated ferric oxide
Any medium-heavy bioload freshwater
or saltwater aquarium
Clear and contaminant-free water
with the added benefit of
long-lasting phosphate control

Chemi-Pure Blue

Extruded pelletized carbon, phosphate adsorption
resin, and organic scavenger resin
Higher pH tanks such as saltwater
reef tanks, African Cichlids,
Goldfish and Koi
Clear and contaminant-free water
with the added benefit of quick
phosphate control and organic
waste removal

Chemi-Pure Green

Extruded pelletized carbon, ion exchange
resins, and organic scavenger resin
Freshwater planted aquariums Clear and contaminant-free water with
the added benefit of organic waste control
without aggressive phosphate removal
which helps benefit plant growth

Manufacturer information

Boyd Enterprises Aquarium Supplies
Boyd Enterprises was founded in 1962 by Dick Boyd, who had been working in aquarium stores since 1947 at the age of 17. He had a love and passion for building and maintaining aquariums as a hobby. Through his constant experimentation to create his own filtration techniques, he developed the world renowned Chemi-pure - the original ion filter medium. In 1955, Dick Boyd along with three others founded the first Marine Aquarium Society in the United States. In 1972, he and his wife Linda, moved into a house large enough so he could build his dream aquarium. It took two years, but by 1974 Mr. Boyd had constructed a 3,000 gallon aquarium that was home to various corals, fish and invertebrates. Boyd Enterprises strives to keep up Dick’s level of Excellence, quality and customer service.

5 Stars


Reviewed on
September 29, 2020

Yes, I would recommend this.


Pros: Does the job for 90 days

Cons: None

I have been using it for years and I have always been very happy with the quality of the product

Was this review helpful? 0 0


Reviewed on
July 10, 2019

Yes, I would recommend this.

Chemipure Elite

Pros: It lasts a long time

Cons: Price

Keeps my water crystal clear, and maintains my ph at a stable level. Also removes phosphates.

Was this review helpful? 1 0


Reviewed on
June 19, 2019

Yes, I would recommend this.

Great product!

Keeps my mixed reef tank clean and healthy. Been using it for years!

Was this review helpful? 1 0


Reviewed on
April 20, 2019

Yes, I would recommend this.

Helps clean water

Been using this for 8 years with purigen to help clean my mixed reef. Bags are easy to rinse and drop in sump. Consider purchasing the 6 pack bulk set to save money.

Was this review helpful? 2 0


Reviewed on
April 17, 2019

Yes, I would recommend this.

Amazing water quality

My water quality drastically cleared up after using this product. Make sure to follow the directions

Was this review helpful? 2 0


Reviewed on
March 27, 2019

Yes, I would recommend this.

Great product

great quality water after using this product

Was this review helpful? 2 0


Reviewed on
March 25, 2019

Yes, I would recommend this.

perfect clear water

Pros: easy to use

Cons: none

This works great. I have it in the media tray in my Nuvo 40. Clear water and happy fish!

Was this review helpful? 2 0


Reviewed on
March 25, 2019

Yes, I would recommend this.

Bulk carbon is a better value

Worked as expected but bulk carbon would be a better value.

Was this review helpful? 0 1


Reviewed on
February 26, 2019

Yes, I would recommend this.

Clear water!

A must if you want to use a carbon media!

Was this review helpful? 1 0


Reviewed on
December 24, 2018

Yes, I would recommend this.


Pros: Easy to use

Cons: Can be messy if you're not careful

Been using this since day 1 of settings my tank. Still going strong after 7 years

Was this review helpful? 1 0

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