Im not real big on the way rock looks in tanks, its just not waht im personaly going for. I like the way this coral looks, but it was hard to find pieces this big, but definitely looking to get more. The only thing i use is a fluval 405, used fluval on my first tanks, and its all i know (great space savers)...Anyways, am always looking to upgrade lighting and what nots...Thanks for the ups, please keep the suggestions coming