We were having a bbq and I head over to Piau Kee to grab some seafood. We went to the Puchong branch, they are also located in SS2 and Cheras.
They offer a varieties of live mud crabs… I am not sure about the crab sizing but I got the XL (looks like M to me) as they have ran out of XXL… it cost RM33.00 per kg, I applied for their membership card I got 10% discount on the spot, pretty neat 
. I took 8 of them which comes up to 3.17kg, total RM 94.09, I will say that is not bad for it size. We had to let it breathe and brought it up the office to keep it alive till bbq time, thanks to KC for taking care of them… hehehe…
The other seafood stuff here are all hard frozen but surprisingly they are still very good and fresh when it was unfrozen to cook. We got some white prawns here, they have various sizes. The bigger one have about 16-20 pcs at RM38.00 (on promo) and 40-50 pcs per pack at RM24.00.
They also have some nice mussels and scallops from New Zealand which goes for RM19.80 per pack for scallops and RM9.90 for mussels. The mussels is ok but the scallop is a bit small in size. They also sell various kind of sauces and other ingredients you need to cook seafood here.
I would say this is a decent, clean and easy way for city folks to do seafood shopping. Now that I got a membership card, guess I will be back for more 
Piau Kee Seafood Retails
No.137 G Floor, Jalan Kenari 23A, Bandar Puchong Jaya, 47100 Puchong, Selangor
Tel: 03-8070 9688
GPS: N3 02.627 E101 37.378