AquaMaxx Granular Ferric Oxide (aka GFO) is an adsorbent filter media that helps to remove phosphate from the aquarium water without leaching it back into the water.
Having GFO in your filtration system reduces the risk for nuisance algae growth, which can quickly build up as fish waste and leftover food breaks down. Algae will get out of hand if left unchecked as high phosphate levels help to feed the algae, and also inhibit stony corals` calcium uptake to form new skeletal structure.
AquaMaxx GFO can be ran within a media reactor for maximum efficiency, placed in a media filter bag and placed where water may flow through it in the sump, hang-on-back filter, or canister filter.
- Rinse media before use
- Use 1/2 a cup per 50 gallons of saltwater aquarium volume
- Use 1/4 a cup per 50 gallons of freshwater aquarium volume
- Test phosphates regularly and replace media when levels begin to rise (1 – 3 month range)
- Note: Alkalinity levels may drop when used, so should be monitored and adjusted as needed.
Available sizes: 1 lb / 2 lbs / 4 lbs
AquaMaxx is a Southern California-based aquarium supply company that entered the market in mid-2008 with a line of affordable metal halide bulbs. The brand quickly gained recognition as word spread about the high quality and low cost of their lamps. In 2009, AquaMaxx released a line of aquarium filter socks and, in early 2010, unveiled an assortment of high-performance protein skimmer accessories and upgrades.