How to make corals grow in proper shapes

[Spiny]

With adequate lighting and random flow, the coral will, in time, grow to the shapes you see in pictures, provided you don't frag it unevenly. You get weird shapes when the coral is either pushed one way by flow, or reaching to/hiding from light.

[carriej]

They are all relatively new and have not had time to do much of anything yet; a lot are still on frag plugs. Should I remove them and attach them to rocks? I keep mostly euphyllia corals so these things are a bit new to me.