I am pretty much on the same page with Travis. Do regular/occassional water changes to maintain all miscellaneous, trace, etc elements. And then monitor calcium, alkalinity, & magnesium, supplementing as needed to keep thigs proper. For this I recommend Randy Holmes-Farley's 2-part DIY supplement. It is good stuff.
Just a project to FIND the ingredients. But folks in COMAS can help you track them down...