View Full Version : Dual media reactor question

06/12/2015, 11:36 PM
How much carbon and gfo do I use? I have an 80 gallon tank. Do I fill it up all the way??

06/13/2015, 12:13 AM
I wouldn't ! What media are you using. If you are just starting to run GFO/Carbon I would start at HALF of what the manufacturer recommends and slowly build up. A rapid reduction in PO4 can really hurt corals.

06/15/2015, 09:20 AM
80 ml of each will do. One ml will process one gallon. Start there and see how long it lasts. You wouldn't want to fill it up. It would prevent the Phosphate media from tumbling, and it would also restrict the flow. Start off with a slow stream, but enough for the media to tumble on the right.