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API Bio-Chem Zorb Filter Media by by API

Best Seller
  • $45.99
  • (45%)
In Stock
UPC: 317163027752
  • $287.99
  • (50%)
In Stock
UPC: 688713087848
  • $18.99
  • (41%)
In Stock
UPC: 317163011089

How can we help? We’re available Monday-Friday, 8am-5pm PT.

1-888-373-8686 [email protected]

Product Description

API Bio-Chem Zorb (formerly branded Rena Bio-Chem Zorb) is the most scientifically-advanced filter media available. Use Bio-Chem Zorb for sparkling clean water and healthy fish!

  • Removes organic waste, toxic gases, water discoloration, foul odors & phenols in fresh and saltwater aquariums
  • Removes toxic heavy metals in freshwater
  • Bio-Chem Zorb will not release phosphates

Bio-Chem Zorb is a blend of 2 research-grade scavenger resins, 2 pharmaceutical-grade ion-exchange resins and high porosity activated carbon in a convenient filter pouch.

Directions: Easy-to-use pouch works three to six months, change regularly for clean & clear water.


  • Size 4 - Fits API Nexx Filter & Rena SmartFilter
  • Size 6 - Can be used on any aquarium filter including the API XP Canister Filter up to 55 gallons

Free Shipping & Easy Returns

Enjoy free saver shipping on orders over $49, even the BIG stuff. Keep what you like and send back any unused items within 30 days.

Authentic Products stands behind the authenticity of it’s products, sourced from reputable brands you can trust.

100% Satisfaction Guaranteed

We always want you to be satisfied when you shop with us. If not, contact us within 30 days for a replacement or a refund.

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Margaret, Waupun WI on 01-19-2016
Great product

Have used this product for years. Makes my aquarium water very clear. Really works!

Robin, Tucson AZ on 09-30-2014
Fish Filters.

I have 5 big fish tanks that are up and running. I have beautiful fish that my husband and I take care of. A LOT of work, but worth it. I had ordered $76.21 worth of aquarium filters for Fluval filters, Aqueon overflow filters, API filter media system (A lot of replacement filters for maintenance). That night my husband and I went to two other stores to compare prices on everything I bought and I was SHOCKED how much money I SAVED. Each store, I saved $65.00 on the same EXACT brand and quantity. I will always get my fish supplies now at Pet Mountain. Thank You. Robin

Scott , Cocoa FL on 12-05-2013
The best with the best

The best filter media (carbon) with the best filter equals clean tanks. If you do not own a Filstar Rena Canister the media fits other canister filters.

Deb, Mt Pleasant SC on 05-21-2013
The best

I have tried everything, but now I will never buy anything but bio-chem sorb because it is the best!

Ben, Owens Cross Roads AL on 05-26-2010
Makes the water nice and clear

This is the first aquarium I've had where the water barely even has that "aquarium" smell. Nice and clear water. One pouch lasts about 1 month in my 55 gal freshwater.