YES! I too am wondering if there is an optimal (cost & convenience wise) schedule. Have there been any long-term studies on the effects of frequency vs. quantity and where the various parameters start to curve? I know every tank is different. (Filtration, stocking level, circulation, quality of raw water and salt, etc.)
But surely it is more science than art... Medinize (is that a word?) the variables and surely there can be some scientific conclusions drawn.
Thanks Karen for starting an important discussion for those of us who are relatively naive and relatively new reef addicts.