Boyd Chemi-pure Blue Ultimate Filter Media

By Boyd
Rated 4.5 out of 5 stars


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$16.95Chewy Price
$27.99Chewy Price
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About This Item


  • All-in-one filter media comes in a convenient nylon bag and is designed for both reef and marine aquariums.
  • Contains premium activated carbon and high-grade ion-exchange resins.

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Fish TypeTropical FreshwaterTropical FreshwaterMarine Fish, Tropical FreshwaterMarine Fish, Tropical FreshwaterMarine Fish, Tropical Freshwater
Aquarium TypeSaltwater, FreshwaterSaltwater, FreshwaterSaltwater, FreshwaterSaltwater, FreshwaterSaltwater, Freshwater
MaterialSynthetic Fabric, Nylon

Questions & Answers

5 Customer Questions

What is the difference between this “blue “ vs the regular Chemipure?
Answer by ChewyAug 29, 2019
The Chemi-Pure Blue Filter helps reduce toxins, organic compounds, dissolved metals, phosphates, odors and more. However, the Boyd Chemi-Pure Filter Media promotes the removal of potentially harmful nitrogenous waste and keeps your aquarium in a safe pH range.

Can you use in freshwater tanks?
Answer by ChewyNov 11, 2021
This can be used in freshwater tanks.

can it be used in a planted aquarium with fertilizer and liquid co2?
Answer by ChewyMar 18, 2022
Chemi-pure Blue is recommended for high pH, hard alkaline water types, such as marine aquariums, African cichlid, Goldfish and Koi aquariums. The Blue formula can be used in a planted aquarium, however it will not preform optimally in a lower pH aquarium. We would recommend using the Chemi-pure Green, which is specifically designed for planted aquariums.

Can this bag be used in a 500 gallon freshwater pond filter
Answer by ChewyApr 16, 2021
The directions say use one unit for 5 to 40 gallons. For more information you may select the "FAQ" tab on the product page.

ReviewsWrite a Review

Rated 4.5 out of 5 stars
8 Ratings
Would recommend to a friend

8 Customer Reviews

Rated 1 out of 5 stars
By Kiwi on Jun 5, 2023

used Chemi-Pure?

This isn't the first time I have received a bag of these that are green stained, telling me that they may have been used. they are supposed to be clean and clear. I can't think of any other reason! Makes me nervous. These are going in the garbage. I normally love Chewy, but don't think i will buy here again. Very disappointed in their quality control of these filter media/something is obviously up if they're green like this!

Rated 5 out of 5 stars
By Kelly on Dec 9, 2021

Chemi Pure Blue

Wonderful product, works wonders for my little marine aquarium.

Rated 5 out of 5 stars
By fish21 on Sep 9, 2021

clear water

I recommend this item. keeps my water clear. No more yellow water. Safe for reef tank.

Rated 5 out of 5 stars
By 120G on Jun 5, 2021

Best filter media out there

Great high quality stuff. Water clarity is big for me and this product def helps. Only bad thing I could say is it’s EXPENSIVE but you get what you pay for. As long as the price don’t go up more anymore; I’ll keep this in all my canister filters.

Rated 5 out of 5 stars
By BJG177 on Jun 9, 2021


I called Boyd and they were right - Chemi Pure Blue is superior to the previous chemi pures. Not that they're bad and only this is top of the line. It purified the water instantly - 180 gallon fresh water tank.

Rated 5 out of 5 stars