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

21mm Bio Balls Aquarium & Pond Filter Media

$33.71 $37.45
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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:
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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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4.3 ★★★★★
Based on 349 reviews
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C
Verified Purchase
catlover
Alexandria, US
★★★★★ 5
Dragon Diaries 🐲
Format: Paperback
A fun addition to her chapter book series! My daughter and I loved this book. Perfectly goes with the Sprinkles and Unicorn books and we can't wait for more!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 8, 2025
K
Verified Purchase
Kelsey F.
Pawtucket, US
★★★★★ 5
Great book!!
Format: Paperback
The boys and girls in my class are both excited for this title! I am excited to read it aloud to them!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 7, 2025
V
Verified Purchase
VALENCA NOVOA
Carnegie, US
★★★★★ 5
I Loved It
Format: Kindle
This was my first time reading a book by Elle Alexanda, and it definitely won’t be my last! I was absolutely captivated by the Lou/Ava love story. I found Lou’s vulnerability so endearing. It was an excellent read, and I wish it were available as an audiobook. The story was a slow burn, but it kept me hooked. The flirting and banter between Lou and Ava were so entertaining. I didn’t want the story to end! Well done, Elle!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2025
H
Verified Purchase
Hailey Watkins
Massapequa, US
★★★★★ 4
Romance with a side of Thrill
Format: Kindle
4.25 stars! I was immediately engrossed in this debut novel, with the thrilling beginning and obvious future romance between Lou and Ava. I thought the setting of the town was wonderful, full of small charm and supportive characters. The little nods towards the continuing threat to Ava’s life were good. The budding romance was great, too! I think the intimacy scenes were soft and perfect. The main reason this didn’t reach 4.5 stars for me (thus would’ve rounded it to 5 instead of down to 4), is because of the POV switches during chapters. They’re a bit jumbled in; the reader is suddenly seeing or hearing things from Lou when it started with Ava, but then it quickly switches back to Ava. It’s not my favorite way for a story to be shared. I also lost a little steam towards the middle-end, right before the big finale. I’m not sure if my other hobby distracted me or if the story hit a slow spot. It’s possible I was hoping for a little more excitement. This story had more romance than thrill.
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Reviewed in the United States on July 21, 2025
M
Verified Purchase
MLTU
Battle Creek, US
★★★★★ 5
Blood and Muscle
Format: Kindle
I had this on my shelf for a while. lG reviews were great, the cover was pretty, and it sounded really interesting. It was better than I expected! Love when that happens🥰 The story was great, the writing was good, and the characters were amazing! Ava and Lou's chemistry at first was a little charged. But as the story went and their relationship developed, it turned into something more tender and very intimate. Throw in the witness protection thing, and you have quite exciting romance. I will be reading this again!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 7, 2025

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