how fine is the charcoal? can I make facial mask with it? Will I see all particles of carbon?

Not very fine, like little rice sized chunks. I grind mine into a powder using a mortar and pestle which gets a little dusty. Its an inexpensive way to purchase this so a little extra prep was fine with me. This would make one scatter and messy face mask. I use it to brush my teeth and make mascara.

does this contain phosphates?

Thank you for your question, Jimmy! No, it does not contain phosphates at all.

How often would it need to be replaced in a cannister filter?

I clean my tank weekly, but replace the carbon once a month, keeps tank clear

How much do i use for 10 gal tank?

You should have a reservoir that you can enter this into and then proceed to filter your water.

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Marineland Black Diamond Premium Activated Carbon 22 Ounces, Filter Media For Aquariums

Marineland Black Diamond Premium Activated Carbon 22 Ounces, Filter Media For Aquariums

Product ID: 14478394

Details

Brand
MarineLand
Item Form
Flakes
Item Weight
22.68 g
Liquid Volume
624 Fluid
Number of Packs
1

⏳long-lasting efficiency

🖤22 oz premium activated carbon

⚙️heat-activated bituminous coal-based

Description

🖤 Elevate your aquarium game with the power of Black Diamond clarity!

ENDURANCE THAT OUTLASTS - Specially sized granules maintain effectiveness long after competitors fade.
UNIVERSAL COMPATIBILITY - Seamlessly fits all aquarium filter types for hassle-free upgrades.
TRUSTED BY EXPERTS HOBBYISTS - Backed by Marineland’s legacy of innovation and a 4.7-star rating from 11,000+ users.
CRYSTAL CLEAR WATER EVERY TIME - Removes odors, discoloration, and impurities for sparkling aquarium clarity.
ENGINEERED FOR MAXIMUM PERFORMANCE - Heat-activated, bituminous coal carbon ensures superior filtration power.

Marineland Black Diamond Premium Activated Carbon is a 22-ounce, heat-activated, bituminous coal-based filter media designed to remove odors, discoloration, and impurities from aquarium water. Its specially sized granules provide long-lasting filtration efficiency compatible with all aquarium filters, making it a top choice for hobbyists seeking crystal-clear aquatic environments.

Specifications

ASIN	B0002566WO
ASIN	B0002566WO
Allergen Information	Abalone Free
Batteries	Product Specific batteries required.
Best Sellers Rank	#5,025 in Pet Supplies ( See Top 100 in Pet Supplies ) #28 in Aquarium Water Treatments
Brand Name	MarineLand
Customer Reviews	4.7 4.7 out of 5 stars (13,195)
Date First Available	June 20, 2004
Department	Unisex-Adult
Global Trade Identification Number	00047431901384
Included Components	See Label
Is Discontinued By Manufacturer	No
Item Form	Flakes
Item Type Name	Pet Supplies
Item Weight	22.68 g
Item model number	PA0372
Liquid Volume	624 Fluid Ounces
Manufacturer	Marineland
Manufacturer	Marineland
Manufacturer Part Number	PA0372
Model Number	PA0372
Pet Type	Dog
Product Dimensions	4.5 x 4.5 x 7 inches; 0.8 ounces
Target Species	Fish
UPC	047431901384
Unit Count	22 Ounce
Warranty Description	See Label.

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