"Removes Phosphates and Silicates from saltwater and freshwater aquariums"

Does not leach bound compounds back into the water!!!
Can be used to pre-filter freshwater before mixing with marine mix

Phosphate+Silicate Magnet is a sophisticated buffering agent that when applied binds phosphates and silicates that can cause undesirable effects in aquariums including increased algae and diatom growth. In time the bound compounds are broken down and used in subspecies metabolism.

Iron, calcium, magnesium, selenium, molygdenum, copper

Derived from ferment of: Sugar cane molasses, vitamins, yeasts