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  • How are reviewers describing this item?
    great, clear, good and clean.
  • Our engine has detected that Amazon has altered, modified or removed reviews from this listing. We approximate total reviews altered up to 4.
  • Previous analysis of this listing was an D grade.
  • Our engine detects that in general the reviewers have a suspiciously positive sentiment.
  • Our engine has profiled the reviewer patterns and has determined that there is high deception involved.
  • Our engine has analyzed and discovered that 38.7% of the reviews are reliable.
  • This product had a total of 682 reviews as of our last analysis date on Oct 28 2019.


Most positive reviewquestion

I use it for add on filling in my regular filter. Nice product to keep your water tank clean.

Least positive reviewquestion

Box damage outside and inside

Most authentic reviewquestion

I paired this with Dr Elseys cat litter after reading a ton of reviews and recommendations. I'm so glad I did. For once, after ...  Read More

Least authentic reviewquestion

no complaints from the fish

Helpful Insights


    Posted by a reviewer on Amazon

    Great product it's a 2 in 1 type thing you get the carbon (black rocks) that cleans the water and you also get the ammonia chips (white rocks) the take out the ammonia from the water nit a bad buy.

    Posted by a reviewer on Amazon

    Box damage outside and inside

Review Count History
Price History