I have my LR stacked againt the back glass. Causes the fish to swim out front.
nope, not that i am aware of.
yep, you can use it on live rock.
if you are paranoid about it, like me, then yes, glue them. but you dont even have to take em out of the tank
Start to find the ones that are wobbly and remove them. Clean off the spot where you want to glue, glue them with superglue and pop them back into the water. That way you won't kill off your LR. You only need to do your unstable ones.