Carbon, GFO & Media Reactors

Chemical filtration is an important part of keeping a saltwater aquarium healthy and clear. Carbon, GFO, and media reactors are designed to polish your water, remove dissolved organics, and target specific problems such as phosphate buildup.

In this category you will find reactors built for different types of chemical media. Activated carbon helps remove discoloration, GFO (granular ferric oxide) works to reduce phosphate levels, and specialty media can eliminate odors or unwanted contaminants. Reactors provide more consistent results than media bags by ensuring thorough water and media contact.