Hellowell i'm getting ready to start my tank swap, to sum up the plans, i'm moving my 45 gallon (ish ) freshwater tank to a 55 gallon hex tank, then converting the fresh tank to saltwater to upsize from my current 12 gallon Eclipse. *I was looking at the filter I got with the hex, its a Emperor 280 i think. large filter with biowheel. *Looking at the size of this, i was wondering about instead of puting a heater in my tank put two smaller (for length) heaters in the filter and then put either ceramic tubes or liverock rubble in there with it,Eventually i'd like to put a sump under the tank, but i was thining this would get me by for a while, i'm hoping in a year or 2 if this setup goes good i'll go even bigger and do the sump then, or else build a 10 gallon one for this setup, not sure yet really, just right now its more then I want to get involved with.thoughts?