Had a special treat last night a few friends from Sarawak came over and brought a 5kg Empurau fish as well. we had it cooked at Unique Seafood SS23 and it was wonderful. Even with 13 people, we couldn't really finish the fish (as there were other dishes as well).
In case you were wondering, thats just one fish sliced into two. My friend got it from friends of an estate who caught it from a river. He probably got it for a couple of thousand ringgit. If Unique Seafood had an Empurau this size, they'd probably retail it at RM8,000 or more.
The scales were fried as probably they were too thick to be eaten off the fish being a 5kg fish. The last Empurau I had we ate the scales off the fish and they were wonderful.
While eating a 5kg fish was unique, I think the best size for an Empurau is probably 1.5kg-2kg. Still a fabulous treat.