I thought OC Aquatics was going out of business, at least that's what their employee told me last time. If they're on the way, I'd check out Coral Gazers and Amazing Aquariums as well. They have the best coral selection that I've seen in the OC area. I also like Age of Aquariums from the one visit, but they're in a completely different direction (sorry, not sure where El Segundo is).