I absolutely suck at aquascaping

[Frogger]

As I stated at the beginning no one plans on getting aiptaisa, bubble algae, vermetid snails, really bad cyano, hair algae, a fish that eats your corals, a coral you don't want anymore or a whole host of other problems. Once you glue your rocks together you are stuck with that problem. There are a ton of threads on CanReef or Reef2Reef about reefers having to completely dismantle their tanks because of these problems. Being able to pick a rock up and remove it from your tank the instant you see some of these problems is a life saver. Also not glueing your rocks together allows you to make adjustments in the future because corals are growing together and stinging other less aggressive corals.

If you really feel you have to glue them together then use a little reef safe epoxy that can be easily pulled apart in the future when needed.

Nice structures are cool at first, once your corals get growing the corals quickly cover your structures and those holes that you created magically disappear. Ideally you need your rocks to allow you to present your corals in the best possible way. Think of the rocks as a kind of shelving units to display your art. This is the mistake I have made multiple times in the past.