Those look really nice! Several islands would be cool. Once I get the other rock out of the 75, I will try to rearrange it all. Problem is, I have coral all over it, so until this tank is done cycling, I cant move it anywhere. And, I need to seed lots of pods before I move my rock, cause I don't want the mandarin to starve. Also, the rock in this 180 now is mostly rounded shapes with a few exceptions, and the rock in the 75 is more triangles. I am gonna end up changing it time and time again my friend.