i used the float switch plan from <a href="http://www.atlantisaquatic.com/DIY.html#07Overflow_Boxes" target="_blank">http://www.atlantisaquatic.com/DIY.html#07Overflow_Boxes</a> by chris green and i used the water top off from <a href="http://saltaquarium.about.com/library/weekly/aa072298.htm" target="_blank">http://saltaquarium.about.com/library/weekly/aa072298.htm</a> and just hooked it up to the float switch instead of a timer. the float switch i orderonline from mcmater-carr and i mounted the float switch to the tank by screwing on a nylon nut i found that is suppose to be used for toilets and i glued that to alittle piece of plastic wich i then glued to a clamp that came with one of my power heads so that i could adjust the level alittle if i decide to change my water level alittle and nope no pictures i only have a cam thats hooked to my comp and it wont reach far enough