847-775-0640 Call us M-F 9-5:30 CST

CoralVue GFO 64 FL OZ.

Product code: 4970

Availability: In stock

Ships tomorrow if ordered in the next 21 hours and 17 minutes!

Reward Points Policy Earn 1,999 AQUAPOINTS

Phosphate Adsorption Media for Fresh and Marine Aquariums

Granular Ferric Oxide commonly refereed to as GFO ideally suited for filtering out phosphate from the water column which promotes better coral growth and helps prevent algae outbreaks. This medias porous high surface area is not only ideal for binding phosphate but also silicate, arsenic and other water-staining compounds.


- Great for Up-flow Media Filters/Reactors
- High Capacity
- German Made Bayoxide
- Absorbs Phosphate
- Binds Silicates
- Porous Surface

Directions for use:

Rinse media briefly using RO/DI water until clear before use. Be careful not to stir or crush the media due to its fragile nature. Place media in a tightly packed media bag or preferably use an up-flow media filter/reactor. Slow flow is desired and be sure not to tumble the media. The suggested amount is 1.5-2 cups of media per 100 gallons.

Questions on CoralVue GFO 64 FL OZ.

No questions asked yet

Ask Your Own Question

  1. Works OK Review by Curt
    Product Rating:

    A little different from Rowo. Lighter in color after use. Im using phosguard/carbon in left media reactor and GFO in the right. So phosphate readings went down from 1ppm to .4 with GFO. Then added chaeto in sump because reef tank used tapwater for 15 years. phosphate went to .23 Also added filter sock for 1st time. Now phosphate went to .18, should keep dropping while using GFO, Chaeto, and a little phosguard. (Posted on 7/3/2019)

Write Your Own Review

You're reviewing: CoralVue GFO 64 FL OZ.

How do you rate this product? *

Product Rating: 1 stars 2 stars 3 stars 4 stars 5 stars
39.99 In stock