According to the sources, fish prices are rapidly decreasing as large stocks of fish arrive at the Peliyagoda fish market. Accordingly, a kilo of Sailfish costs Rs. 500, Seer fish Rs. 400, Balaya Rs. 250, Tuna Rs. 320, cuttlefish Rs. 250, Ribbon fish Rs. 40 and Anjilawo Rs. 400 at the Peliyagoda fish market, sources added.