Reef Endurance GFOPhosphate Adsorption Media for Fresh and Marine Aquariums Granular Ferric Oxide, often referred to as GFO, is perfectly suited for filtering out phosphate from the water column. This helps promote better coral growth and helps prevent algae outbreaks. This media has a porous high surface area, making it ideal for binding phosphate, silicate, arsenic, and other water staining compounds. How to Use Use an up flow media reactor with a flow rate capable

and bioactive components to an aquarium and increase coral growth and color formation (without darkening the corals)

Carotenoids provide the extra benefit of antioxidant activity

high-density nutrition formula that uses high-quality protein from marine sources and aquatic vegetables to provide a well-rounded

but warm water will help dissolve the powder more quickly

This Battery Backup Cable connects the HYDROS Kraken to an external 12V Lead Acid Battery to keep your system alive during power failures

or Control X10

it is very important to test it to ensure it's working properly

1ml /100L (26 US gal) = +10 micrograms Iodine/L

the Sailfin/Algae Blenny will perch on live rock

and Precise ICP Testing

Keep track of the salinity in your marine aquarium with the CoralVue HYDROS Salinity Kit

providing unparalleled reliability and peace of mind