5.  Does the color or smell change the effectiveness or remaining shelf life of Fritz-Zyme?

No. The smell may range from none to a very strong pungent odor and the color from a rosy red to a grayish black. We have seen the odor and color ranges mentioned above to be equally effective. The true test of the product effectiveness is its ability to convert ammonia and/or nitrite. If the product has not expires and has been handled properly it will be effective in the aquarium.

Independent Studies

California State, Texas A&M Corpus Christi, University of Nevada Las Vegas

Testimonials

Actual testimonials of FritzZyme users from hobbyists to professionals.

“I cannot thank you enough for producing a product which would clearly exceed the expectations of virtually anyone in this business.”

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