German Engineered Granular Ferric Oxide (GFO) is the benchmark media for total phosphate removal in all aquaria. Used all over the world, it is the product of choice for many critical water purity applications.
GFO permanently binds phosphates. With regular use of GFO any aquarium fresh or salt, reef or planted, will stay much cleaner and less maintenance labor intensive!
Media bag with GFO can be placed inside of: canister filters, power filters, pond filters, sumps, refugiums, corner filters, next to uplift tube on UG filter plate. GFO can be placed directly into Bio-Bags or other fine floss bags.
GFO is 5 to 20 times more effective than white activated alumina media and it is completely safe for fish and invertebrate, fresh and salt-water aquariums.
Maintains extremely low to non-measurable levels of phosphate and silicates thus greatly reducing propagation of algae.
Removes arsenic and other heavy metals.
Safe for the most delicate invertebrates – does not contaminate water with iron.
Extremely low impact on trace elements and desirable fertilizers like potassium.
Non-leaching, permanently and irreversibly binds phosphate and silicates.
Hi Jason, I bought some of your bulk GFO and some other Phosphate remover about a week ago to try out. I have used some others and the best one I had found was the Rowa, well then I tried the Bulk you sell and I was very impressed with it. Had a reading of 137 on my Hanna Phosphorus checker and added 2 cups, in 24 hrs it read 22 very good, right there with Rowa, but the best part is the media itself, almost all the same size about the size of Matrix Carbon and rinsed quickly with only a small amount being discharged, unlike Rowa where you almost have to add an extra 1/2 cup for what is discharged. Anyhow bottom line I am impressed and have no problem recommending it to all and will be purchasing in much larger quantity in the near future.