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- How are reviewers describing this item?
great, clean, good, charcoal and perfect.
- Our engine has profiled the reviewer patterns and has determined that there may be deception involved.
- Our engine has determined that the review content quality is low.
- Our engine has analyzed and discovered that 65.1% of the reviews are reliable.
- This product had a total of 43 reviews as of our last analysis date on Sep 5 2019.
These are perfect for my large 30 gallon tank. I don't need to change out the filter but once every 6 weeks and my tank is cle... Read More
Posted by a reviewer on Amazon
One star off for some charcoal pieces coming out.
Review Count History