The adventure of the 125gal tank

[mytank90]

first thing you must do is make sure that your tank can be drilled .some tanks you buy cant be becuse wrong type of glass.if your very brave you can drill tank youself .i would talk to your lfs see what they would charge to drill and put in your overflow boxs in a corner of if want a external overflow .as for stuff needed i would prbly look for a used sump first then a heater/skimmer and last the light .this way you can set up tank with just the sump and a heater to get cycle going with live rock as you look around for other stuff