Jim has all the good products, Rods Food, Dr Tims, Spectrum, etc. Never bought any fish or coral from them though.
Good Fish selection is at Pacific Reef Tropical Fish on Sepulveda, Peter is the man, he insists on feeding in front of you, looks for any markings before he sells you the fish. Has a really nice Sunburst Anthias and Mystery wrasse right now, along with some other nice wrasses.