making an overflow

[gatzke]

hi there

I got this tank in a coral trade a year and a half ago. it has sat in my parents basement since then. I recently got pre approved to buy a house and am going to purchase one soon. I want to use this new tank that's been sitting in my parents basement as its way nicer then my 40G breeder tank. this is a corner bow front Fluval tank I dunno how many gallons. here is the tank its on my local fish forum you might need to sighn up to view it.

http://winnipegfishforum.info/forum/index.php?action=dlattach;topic=46929.0;attach=225 90;image

so I need to make a overflow in the holes it has drilled you can see it there. my friends going to purchase my whole tank setup from me so I want get this one up and running and just transfer my livestock and corals into it and sell my friend my old one

thanks for any help in advance