Oceanethix is an Australian aquaculture company based in HK which has expanded its operations to Shanghai. Their seafood are raised in a proprietary atoll tank, an eco-friendly system. Using a unique filtration and water recycling system actually results in cleaner, healthier, fish. They deal in both retail and wholesale. OCX offers next day delivery in Shanghai and free delivery for retail orders over RMB150 or RMB30 for orders below minimum.