Big Crabfish.. Udang Galah?

Went to the Pasar Paka last week and I saw that and had to get a snap of it. Chu Arif told me when I meet him last month, he would just buy if he saw anything like that being sold ..what ever the price.. That one cost RM100! He mention to me that its not everyday that you could find huge catches like that; he once bought a prawn a size of his arm!
I always loved eating seafood and as long as I can remember I had no problems with it. Even when I was small my brother jefri had asma, so one of his "treatment" is to have "udang galah" cooked for him. Its expensive but tasty.
As you know that we recite doa "Allahhumma bariklana Fima rozaktana wakina aza bannar..." before eating but we do have different "doa" when eating fruits "Allahhumma bariklana fi samarina" and another one when drinking milk. Just been wondering whether we have different "doa" for eating seafood... hmmm