Fritz Clarifier 16oz

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  • Quickly Clears Cloudy Water
  • Safe For All Fish, Plants and Invertebrates
  • Improves Filter Efficiency

Fritz Clarifier is best suited for use on cloudy or hazy aquarium water where filtration alone isn't enough to clear it. The clarifier works by pulling together the free floating particles in the water which are causing the cloudiness and, therefore, allowing them to settle on the bottom or get picked up by your filter. We recommend waiting at least 24 hours between doses and doing a partial water change in between dosing.

Customer Reviews

Based on 72 reviews
Laura R. (Yakima, WA, US)
Fritz clarifier

This stuff really works. I have tried others and they wouldn’t clear the water at all. After I put this in maybe a couple hours and it’s cleared my tanks. I highly recommend it.

Steven S. (Duluth, MN, US)
Water 💧 pure

I hate having to use a clarifier but when you use city water sometimes it's necessary. This product works very well.

Carlene W. (Philadelphia, PA, US)
Great product

Was not sure about this product.
But a few hours later my tank was clear.

Woods K. (Seattle, WA, US)

Put the recommended amount in my fish tank. And a couple days it cleared up.

Lillian M. (Evanston, IL, US)
Clarifier saved my tank from cloud cover

After a few weeks in a new tank, the water in my 10-gallon aquarium got that London Fog that simply would.not.go.away. I tried doing 25% water changes, gravel cleaner, additional filtration - nothing seemed to do the job. This stuff just WORKS and its very easy to use. No negative effect on my fish. Definitely give this a try if your water is cloudy - I used it 1x a day at first as a test, then upped to 2x a day. I noticed a difference within one day, and everything was clear in about 4 days.