<a href=showthread.php?s=&postid=8392676#post8392676 target=_blank>Originally posted</a> by Taikimoto
My 2.5 is drilled, dunno if that is the one you are talking about, however I had to experiment first, and my solution was way off the wall.
I tried to drill the first 2.5 with a regular hole drill used to drill larger tanks (I have drilled dozens of tanks, ranging from (20-220 gallons, never cracked any). I cracked it when I went to push through, so I tried another and the same thing. Well, I decided to take out the back glass that was cracked, and I replaced it with a piece of acrylic I cut to size, and was able to drill a perfect hole in it in 20 seconds with ease.
I think if I had kept the first tank I would have tried to drill another hole in the back of it, this time though not try to push through, but take my dremel and finish the job once I had used the drill to get most of the way through.
Edit: I noticed your from raleigh, the drills I was using are the ones at Fish World on Capital Blvd, as I used to be a manager there Jeff let me go and try to drill the 2.5's, he wanted to see if it could be done also, he was surprised at my solution, hehe.