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 game with the power of Black Diamond clarity!

OPTIMIZED GRANULE SIZE - Engineered to maintain efficiency long after others fade.
UNIVERSAL COMPATIBILITY - Perfectly fits all aquarium filter types for hassle-free use.
TRUSTED BRAND INNOVATION - Marineland’s cutting-edge filtration technology ensures reliability and style.
CRYSTAL CLEAR AQUARIUM WATER - Removes odors, discoloration, and impurities for sparkling clarity.
SCIENTIFICALLY PROVEN PERFORMANCE - Outperforms competitors in contaminant removal (2015 University study).

Marineland PA0372 Black Diamond Activated Carbon is a 22-ounce, heat-activated, bituminous coal-based filtration media designed to remove odors, discoloration, and impurities from aquarium water. Specially sized for long-lasting efficiency, it fits all filter types and is proven to outperform competitors, making it the go-to choice for hobbyists seeking crystal-clear aquatic environments.

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Brand	MarineLand
Liquid Volume	624 Fluid Ounces
Item Weight	23 g
Item Form	गरनयल
Target Species	Fish
Manufacturer	MarineLand
UPC	047431901384
Global Trade Identification Number	00047431901384
Item model number	PA0372
Product Dimensions	11.43 x 11.43 x 17.78 cm; 22.68 g
ASIN	B0002566WO

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

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