That middle one looks like an Arowana.I raised one in a55 gallon aquarium. Awesome fish. He ate out of my hand. Great jumpers. They are mouth breeders. Natives used to corral th e m in nets. When they jumped,they'd chop their heads off and collect the fry from their mouth to sell to aquariums. Can't buy them anymore. I gave mine to Masseys aquarium on Rainier Ave when he got to be 20".