Best in 7 days
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Ships within 48 hours · Estimated delivery Jun 16 - Jun 21
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Description
Reef Octopus VarioS CR140 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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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.7 ★★★★★
Based on 2134 reviews
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Product Reviews
★★★★★ 1
Not functional
Tree part is very cheaply made plastic material and does not fit well into the stand at all
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 30, 2026
★★★★★ 2
Don’t bother, not worth the $
Much smaller in person than it appears. Looks more like a piece of coral than a tree. I got this to display some ornaments for sale at craft fairs, but it’s so small, it looks silly with the ornaments on it. Super flimsy, made of cheap plastic. Definitely not worth $14. Will be returning.
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Reviewed in the United States on May 12, 2026
★★★★★ 5
Durable
Very durable and can hold a few pieces
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Reviewed in the United States on February 4, 2026
★★★★★ 5
Cute
Just as described, perfect for putting rings and bracelets on. I put lines on the branches to resemble a birch tree . Its good value for the money
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Reviewed in the United States on November 8, 2025
★★★★★ 1
Cheaply Made
Not worth the money it costs imo
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Reviewed in the United States on March 14, 2026
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