21mm Bio Balls Aquarium & Pond Filter Media
SKU: 55723567582

21mm Bio Balls Aquarium & Pond Filter Media

Sale price$33.71 Regular price$37.45
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

21mm Bio Balls Aquarium & Pond Filter Media21mm Bio Balls Aquarium & Pond Filter Media Premium Bio Balls Standard 21mm Filter media forms an essential part of any aquarium or pond filtration system. Our 21mm Bio Balls provide a large surface area for bacteria to develop, helping to break down ammonia and nitrite. Bio Balls also help improve overall water quality by maintaining healthy oxygen and PH levels, and absorbing and breaking down poisonous ions. Long lasting and highly effective, our

21mm Bio Balls Aquarium & Pond Filter Media

Premium Bio Balls - Standard 21mm

Filter media forms an essential part of any aquarium or pond filtration system. Our 21mm Bio Balls provide a large surface area for bacteria to develop, helping to break down ammonia and nitrite.

Bio Balls also help improve overall water quality by maintaining healthy oxygen and PH levels, and absorbing and breaking down poisonous ions.

Long lasting and highly effective, our Bio Balls are suitable for use in filtration systems to filter freshwater tropical and saltwater marine fish tanks and ponds.

Supplied loose as pictured. Please select desired quantity from dropdown.

Diameter: 21mm / 2.5cm

Maintenance: Rinse thoroughly prior to use until the water runs clear. Bio balls can be rinsed and re-used numerous times. To preserve biological activity, it is advised to use aquarium water when cleaning rather than tap water.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 55723567582

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Chris Griffith
Carnegie, US
★★★★★ 5
Expensive. Have to limit as I have 3 dogs.
Size: 18 Count (Pack of 1)
Dogs love.
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Reviewed in the United States on May 13, 2026
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Amazon Customer
Draper, US
★★★★★ 5
Tula's treat
Size: 18 Count (Pack of 1)
She gets one a day and it makes her a very happy girl.
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Reviewed in the United States on April 18, 2026
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Amazon Customer
Lexington, US
★★★★★ 3
Dog chew
Size: 1 Count (Pack of 6)
Good quality and price dog likes it hut watch for choking
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Reviewed in the United States on February 19, 2026
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Alexia
Houston, US
★★★★★ 5
Will buy again
Pattern Name: classic
SUCH good quality, stays stuck all day even through sweat
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Reviewed in the United States on July 29, 2025
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Yami
Charlottesville, US
★★★★★ 5
Lasted all night long!
Pattern Name: classic
These were perfectly what I envisioned for the Coldplay concert! I’m a girlie who likes to glam up and these did not disappoint. I was hesitant to see if they would stick or fall off since I would be laying them on top of a full face of make up, but nope not a single problem not even with a little sweat from all the walking and dancing. Plus I love the fact that I had a variety to choose from and they are so much fun. Can’t wait for the upcoming rave to wear again.
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Reviewed in the United States on September 21, 2025

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