Thartsockpg
Aquarium Advice Freak
What is really like doing is having one side be an island and the other have some arches. You could always smash the rocks ups and restart. But there is always uncertanty in that. I also think that a asymmetric design is most natural or realistic looking. You don't see to many reefs with two piles of rocks connected by one arch. Look at some other people's tank and then pick and choose what you like if you can't get it right smash the rocks and try again. That's what I did!!(it was fun too)