overflow

[cmantis]

Can anyone suggest the best overflow for my 40g breeder tanks? I have seen many suggestions for the glass-holes kits or perhaps somebody here could help make some for me? Any ideas or advice is much appreciated.

 

[skene]

If you are set on drilling your tank... go and get a glass-holes kit. If you don't want to you can always purchase an overflow box.

like so...

and it just so happens someone is selling one just like that on the FS threads...
(insert shameless plug here)