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Boyd Enterprises
Boyd Enterprises Blue Chemi-Pure Aquarium Filtration Media

Boyd Enterprises Blue Chemi-Pure Aquarium Filtration Media

Best price now

$24.99at AmazonObserved at 1:16 AM

Compared across 2 stores. Prices are checked against each store and labelled with when.

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Our take on the Boyd Enterprises Blue Chemi-Pure Aquarium Filtration Media

Chemi-Pure Blue is a bagged filter media for saltwater aquariums. It combines activated carbon with ion-exchange resins to pull out dissolved organics, discoloration and some phosphate. One 11-ounce bag is rated for tanks up to 75 gallons. The best new price is $24.99 at Amazon as of November 4, 2026, and only one store lists it new, so there is no cheaper alternative to compare against right now.

Best forReef and fish-only saltwater tanks up to 75 gallonsHobbyists who want carbon and phosphate control in one bag
Drop-in filtration for sumps, canister filters and hang-on filters
Owners replacing loose carbon with a cleaner, bagged option
Pros
  • Combines carbon with ion-exchange resin, so one bag handles clarity and some phosphate
  • Rated for up to 75 gallons, a good match for mid-size tanks
  • Comes pre-bagged, so no media bags or rinsing mess
  • Widely used in the reef hobby and easy to swap out
  • Does not need a reactor or pump to work
Cons
  • Only one store lists it new at $24.99, so there is little price competition
  • Resin exhausts faster than plain carbon, so bags need regular replacement
  • Not for freshwater tanks; it is formulated for marine water
  • Can strip trace elements if left in too long
  • Small 11-ounce bag means larger tanks need two

Boyd Enterprises Blue Chemi-Pure Aquarium Filtration Media prices at every store

  • eBayNew

    In stockSold by gingerbread_pet_supplies

    $21.53+ $5.99 shippingObserved at 1:16 AM
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  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $24.99Observed at 1:16 AM
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Also available at

  • eBayCheck price at eBay
  • Aquatica SuperstoreCheck price at Aquatica Superstore
  • Super CichlidsCheck price at Super Cichlids
  • Top Shelf AquaticsCheck price at Top Shelf Aquatics

Boyd Enterprises Blue Chemi-Pure Aquarium Filtration Media price history

Lowest price we've seen: $11.89 on Nov 4 at Top Shelf Aquatics. Tracked across 5 stores since Nov 4.

What reviewers say

Reef keepers generally rate Chemi-Pure Blue well for clearing water and holding phosphate down in mixed and soft-coral tanks. The common complaints are that it exhausts within a few weeks and that it is pricier per bag than plain carbon.

Pros
  • Water clears noticeably within days
  • Helps keep phosphate lower between water changes
  • Bag is clean and easy to place in a sump or filter
Cons
  • Loses effectiveness after about four to six weeks
  • Costs more than loose carbon
  • Some users report no measurable phosphate drop

Specifications

Item form
PelletsSource
Item weight
11 OuncesSource
Liquid volume
75 GallonsSource
Item dimensions
3.25 x 3.25 x 5.63 inchesSource
Package dimensions
4.61 x 3.27 x 3.07 inchesSource
Color
White/BlueSource
Model number
16752-8Source
Number of items
1Source
Tank capacity
75 gal.Source
Water type
MarineSource
Width
3Source
Length
5Source
Filtration Method
Filter Bag

Questions and answers

Is Chemi-Pure Blue worth it over plain activated carbon?
If you want phosphate and organic removal in one bag without a reactor, yes. Plain carbon is cheaper but does not target phosphate. For a 75-gallon reef it is a reasonable single-bag choice.
How long does one bag last?
Most reefers replace it every four to six weeks. Discard it sooner if water clarity drops or phosphate starts climbing. Do not rinse it in tap water; use tank water if you rinse at all.
Can I use it in a freshwater tank?
Boyd markets Chemi-Pure Blue for marine water. The original Chemi-Pure is the version aimed at freshwater. Using the Blue in freshwater is not its intended use.
How much do I need for my tank size?
One 11-ounce bag is rated for up to 75 gallons. For tanks over that, use two bags or step up to a larger size. Place it where water flows through the bag, such as a sump or canister.
Does it remove medications or copper?
Yes, carbon and resin will adsorb many medications and trace copper. Remove the bag during treatment and do not rely on it to keep copper at therapeutic levels.
When is the price lowest?
Only one store lists it new at $24.99 as of November 4, 2026, so there is no competing price to wait for. Watch for multi-pack listings, which often cost less per bag.
Where is the Boyd Enterprises Blue Chemi-Pure Aquarium Filtration Media cheapest?
At Amazon, for $24.99, as of our latest check.
Where can I buy the Boyd Enterprises Blue Chemi-Pure Aquarium Filtration Media?
5 stores we checked sell it, including eBay, Amazon, Aquatica Superstore, Super Cichlids, Top Shelf Aquatics.

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