It really bugs me if I have to put my hands in my tank. Why you ask? 1. I have got to scrub down. 2. It's impossible to get all the residue and oils off your skin. 3. Once your in you might as well finish some tasks that are nagging at you. My goal is to go 5 days and no hands in the tank at all, no touching system water. Am I over thinking this? Can corals withstand a lot more handling than I think?