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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🖤 Elevate your aquarium’s clarity with Black Diamond power!

ECO FRIENDLY SAFE - No batteries or chemicals required—pure, natural filtration power.
LONG LASTING FRESHNESS - Keeps your aquarium water pristine, reducing maintenance frequency.
PRECISION GRANULE SIZING - Specifically sized granules maximize surface area and efficiency.
DOUBLE SPEED PURIFICATION - Works twice as fast as standard activated carbon for crystal-clear water.
TRUSTED BRAND RELIABILITY - Marineland’s proven formula ensures consistent, high-performance filtration.

Marineland PA0372 Black Diamond Activated Carbon is a 22-ounce, 624-gram premium filtration media designed with optimized granule sizing to deliver twice the speed and efficiency of standard activated carbon, ensuring superior water clarity and freshness for your aquarium.

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Batteries	Product Specific batteries required.
Item model number	PA0372
Is Discontinued By Manufacturer	No
Item Form	Granules
batteries required	No
Batteries Included	No

Marineland PA0372 Black Diamond Activated Carbon, 22-Ounce, 624-Gram by MarineLand

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