I normally do not break the corals with my hands but I had accidentally wrap the power cord around a frag, move the power head and break the entire coral off more than once. My tank is large-ish (it's 150g) and it's tall so I couldn't see from the side. Wrapping the cord around my forearm doesn't really help due to the size of my tank since I would still have to move the power head across the tank for a 4'x3' area so there is a long distance to cover. The turkey blaster works better because I don't have to constantly worry where is the other part of the cord wrapping to but I think if there is a battery powered power head, it would be better even.