Astro aquaculture is the leading soft-shell crab farming company that is organically cultivating first quality Crabs at a reasonable cost. Mud Crab Fattening is the process of stocking juvenile crabs (10 g to 250 g) and allowing them to moult and grow. Astro Aquaculture is providing 100% organic fattening mud crabs for export. Astro Aquaculture is the leading vertical crab farming company that is organically cultivating first quality Crabs at a reasonable cost.