Kolar Labs Granular Ferric Alumina (GFA)
GFA is a premium granular ferric activated alumina media that binds phosphates and silicates to promote clean and healthy freshwater and saltwater aquariums. GFA is a scientifically engineered filter media specifically designed for phosphate reduction with dramatically improved performance compared to standard activated aluminas due to the iron addition. Iron gives it superior phosphate-binding properties to increase its phosphate removal efficacy and capacity, providing superior removal compared to other medias, making it an essential component of your filtration system.

Kolar GFA (Granular Ferric Alumina) Phosphate Reducer efficiently removes phosphate in fresh and saltwater aquariums, ponds, and pools. Left unchecked, high phosphate levels can cause extensive harm to fish, coral and other aquarium life, and increase tank maintenance and cleaning requirements. Whether you are an experienced aquarium hobbyist or a beginner, maintaining low phosphate levels is critical to the health of your aquatic pets, plants, and corals. This advanced filtration media is ideal for both freshwater and saltwater tanks, delivering fast and reliable results that will help keep your aquarium looking pristine and your aquatic life thriving.

Our iron-doped alumina is designed to last for several weeks to months, depending on your tank's phosphate load. Once phosphate levels begin to rise again, simply replace the media to maintain optimal water conditions. This long-lasting formula makes it a cost-effective solution for continuous phosphate control.