Hole sawing tank stand

[robmcd]

I have re-read my initial post and the comments and I can see I have created some confusion.

Just to be clear I only want to create two holes in the back of the stand to allow for the fx4 pipe work to exit the cupboard where the filter is housed - I hope that is a little clearer - oops

Go ahead and drill it. The tank could experience a little vibration but I doubt that you would hurt anything.