The silver arowana is the most commonly sold arowana here in the Philippines. Almost every pet shop here is selling a silver arowana. A 3 inches juvenile would cost at around PHP 250-300 while a 5-6 inches juvenile would cost at around PHP 600. Of all the arowana species, this kind of arowana is the most hardy and easiest to take care of. It is one of the sub species of the arowana family that can be found in South America, particularly in the Amazon river. If you are often watching National Geographic documentaries about the life in the Amazon, you would see that the Silver Arowana is also considered as food to the people who live close to the river. It is one of the most biggest and longest of all the arowana species.