^that is a giant siamese carp.
The angling Thailand web site is a tour. The arapaima are in a big old clay pit in the middle of Bangkok. There are also giant Siamese carp, Mekong cat fish, you name it. In the morning it looks like boiling soup there are that many fish.
I go with my mates. Only take one rod between three though or you spend you entire day fighting monsters. Gets boring after a bit.
The arapaima is pretty easy to catch as well as long as its not sprat season.
It's not real fishing, just play fishing.