Whisper Power Filter 30 Whisper Power Filters Are The Best-Selling Brand Of Power Filters In The U.S. Appropriate For Every Size Aquarium, They Provide The Three Types Of Filtration That Your Aquarium Needs: Mechanical Filtration -- To Remove Particles Such As Uneaten Food, Bits Of Plants, Fish Waste, Etc., From The WaterBiological Filtration -- To Provide For The Growth Of A Colony Of Beneficial Bacteria That Will Eliminate Harmful Toxins In The WaterChemical Filtration -- Activated Carbon Removes Compounds That Cause Odors And Discoloration Of The Water .
Biological Filtration -- To provide for the growth of a colony of beneficial bacteria that will eliminate harmful toxins in the water
Chemical Filtration -- Activated carbon removes compounds that cause odors and discoloration of the water
Mechanical Filtration -- To remove particles such as uneaten food, bits of plants, fish waste, etc., from the water
DISCLAIMER: The results described on the testimonials on this site, are the individual experiences and personal opinions of those who have purchased and used the products. These testimonials are not intended to make any claims that the products can be used to diagnose, treat, mitigate, cure or prevent any disease or medical condition.