Live rock base

[Codie]

Hey guys just wondering if there is something I can place under my live rock as a mat so that the rock is not resting on the glass any ideas?

 

[Rookie]

Typically egg crate seems to be the go to, always worked for me anyways,

 

[Limey]

Second the egg crate stops sharp points creati g pressure points on thd glass, also it stops rocks moving or sliding on the glass.