[Fido]

Was carbon the only filter media in the emperor? sorry not too familiar with the emps.

 

[Fido]

should be fine without charcoal. if thats all the media that emp holds, i would get an AC...holds a huge sponge.

 

[Fido]

Its good for BIO and Mechanical. I always thought those emps had a sponge in em before the biowheel. hmm. But the thing about ACs is you can add whatever filter media you want, because its a giant box. I like putting a big sponge, and then some floss above that. Some people but ammonia rocks or charcoal.