GFO and Carbon Question

[Madreefer]

What Grizz said. Just adjust the flow so that though the top of the media looks like a really light boil. Like a slight rumble. If you have them turned up too high it breaks the media down. Also be sure to rinse both the carbon and the GFO before hooking the reactors back on line.

[eli@fijireefrock.com]

What I recommend for use of our carbon and HCGFO
0.75 of a cup of caco3reef activated-carbon for every 100glns of tank water.1st start with 1/2 a cup and work your way up to the specified amount.Replacing the carbon depending on the quality of your tank, usually every 3 weeks for 3 months and go up to 6-8 weeks per replacement.
For caco3reefHC-GFO use0.75 of a cup for every 100 glns of your tank water volume.1st start with 1/4 cup and work your way up to specified amount.replacing the media again depending on your tank water,usually every 4 weeks for 2 months and could go up to 10 weeks per change.
I don't recommend using both media in the same reactor as it will get messy for time of replacement and loose some of your media.
I will tell you how I use it on my system.
I run 2 modified reactors having them running parallel 1st the activated-carbon then the HC-GFO teeing off my main pumpwith a shot-off valve that I have it tuned down so my activated-carbon is risen for approximately 3/4" from original height and yes you will see a very faint bubbling motion on the surface.As the HC-GFO will rise for approximately 1/2" free flowing is what you are looking for both media.
Best follow my specifications with the modified reactors.
Hope that helps and facilitate the build of your reactors.