Click for general information about feeding fish.
The arowana is a facultative air breather and can obtain oxygen from air by sucking it into its swim bladder, which is lined with capillaries like lung tissue.
While it is not banned on a federal level, some local governments may have banned them, so it is worth checking your local policies.
Most produce relatively low numbers of eggs for fish.
I wouldn't choose this if you wanted to maintain arowana and angelfish.
Hence, regular water testing, tank water replacements, and water treatments must be carried out as necessary.