The average crab pond covers an area of about 3,000 square meters, wit h the bottom usually paved with sand. A one-meter-wide gutter at the end of the pond is served to trap the crabs when water of the pond is emptied.
菜蟳的養殖池一般都圍築在沿海處，每池在一千坪左右（紅蟳池較小，約三百坪左右），池底鋪以含砂質較多的土壤，並向一邊傾斜，在較深的一方，需挖一條寬約一公尺的水溝通往水門，以便在排乾池水時能讓蟳逃入水溝集中捕捉。