Quick question:can you mix carbon and RowaPhos in one reactor?
 

thanks

You could but chances are one will expire before the other.

With the differences in weight you would never get both to tumble nicely, one would be moving and the other wouldn't or be geting blown from reactor.

They both require different flow rates through them, so it wouldn't be as effective at all.

I'm running rowa and the small round carbon in a 150 with no prob. Mine tumbles fine but the carbon has settled lower than the rowa. When the phosphates show up it all gets replaced.