Live Rock Against Glass?

[Pat G.]

I have looked at several pics. of reef tanks. It seems that a lot of people put their live rock near the back of the tank. It appears that the rock is touching the back glass.
I was wondering if it is O.K. to put the rock up against the glass in the back or not?
Should the rock never touch the sides of a tank?

[Gubinz]

it doesn't matter
in my tank the rock is touching all four sides
it just means that it is going to be harder to clean

[razorbackfan]

I have a space between my rock and glass so I can clean the glass.

[Pat G.]

Thanks for the info. I was maninly wondering if it would put stress on the glass and have a good chance of breaking the glass.

[Colin]

Jim, ya know if you pile up enough LR against that back glass, you don't HAVE to clean it.

--Colin

[johnny]

just be careful! If you move the rock real fast or it falls down into the glass, there's always the potential that it will crack.

Nick