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Ships within 48 hours · Estimated delivery Jun 20 - Jun 25
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Description
Reef Octopus CR100 Calcium ReactorA calcium reactor is essentially a chamber full of aragonite, which is the crushed skeleton of ancient hard corals. Aquarium water is pumped through this chamber along with pressurized carbon dioxide (CO2). The CO2 lowers the pH in the chamber to an acidic level which dissolves aragonite media into the aquarium water. In addition to dissolving the calcium, this process also dissolves nearly all the minerals and trace elements the coral used in order
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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.
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.2 ★★★★★
Based on 1494 reviews
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Product Reviews
★★★★★ 5
Our dog loves it!
My dog loves this toy! He gets to play fetch with it after his dinner, and looks forward to that time so much. Great construction!
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Reviewed in the United States on November 25, 2025
★★★★★ 5
Perfect
Fast delivery -exactly what Daisy wished for
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Reviewed in the United States on January 11, 2026
★★★★★ 5
Squeak isn’t too Loud or obnoxious. Good quality.
Good quality, dog loves it.
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Reviewed in the United States on July 8, 2025
★★★★★ 3
Quality issues
The first one the squeaker did not work, the second one the seam on the wing had a fault so it didn’t not last more than an hour or two before it was taken away.
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Reviewed in the United States on May 17, 2026
★★★★★ 4
Tall Tails Fan
My Boston Terrier loves tall Tails toys. However, they do not seem to be lasting as long. However, I continue to purchase because she has to have their chipmunk to go to sleep nightly.
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Reviewed in the United States on February 20, 2026
