can someone give me advice on setting up a herbie overflow

[fishytime]

Originally Posted by xtreme

Grab a little chunk of styrofoam and use your hole saw to cut through it. Then clamp it onto your tank as a template, it'll keep your bit from skipping around. I've done the angle method as well and the template makes it a lot easier.

Thats a great tip Sean....

If you want, have a look at the first couple pages of my tank journal http://www.canreef.com/vbulletin/showthread.php?t=40669 ....theres some fairly detailed pics of my herbie set-up.