I have a 300 gal tank which I have always kept about 6 bags of chemi pure in the sump. Based on what I have been reading it appears that I would get better use of carbon in a reactor for a slower more consistent flow. Has anyone used chemi pure in a reactor or do I have to switch to carbon?:question: Also for this size tank what make/model would you recommend? :HELP!:Appreciate your experience!