A basic grilled fish recipe suitable for any whitefish. This can be done with fillets or a whole fish. Whole fish would be preferred for Barramundi and Tub Tim, fillets for Pangasius.
In Tesco, Barramundi is sold at about 68 Baht/fish, ocean farmed is sold in open markets by the kilo and it is just slightly more than the Tesco fish. One fish will be 2 fillets, cut each fillet in half and there is your 4 pieces. Using Barramundi from Tesco, this is about $1 per serving for 2 servings. Pangasius fillets and whole Tub Rim would be slightly less. Using a whole fish I would stick to 1 kilo or less for the fish.