thats deffinately good to know i bought what i thought was a 240 about a month ago and i soon found out it was a 220 which is ok i guess and its still finishing its cycle but i have it completely ready for a shark rocks light pumps skimmers sand everything i just need it to finish its cycle and ill be gettin a shark egg i cant wait its been hard but i decided im gonna do it right this time so im waiting but yea its good to know that sharks have to be worked with i wouldnt have thought it woulda done much good lol