HELP!!! Foreign Object in Arowana's Mouth

[ymmij]

Hi I have a 6 feet bare tank with a arowana, 2 rays and 2 sucker fish. Today I discovered that the arowana's mouth cannot close. Upon inspection, I realised there is something inside it's mouth. But I cannot differentiate what it is.

There is basically nothing inside the tank that the arowana can "eat" and get stuck inside the mouth. It looks like a lollipop stick, there is no way a stick as such could get into my tank. I suspect it could be bone.

I feed my arowana pellets and market prawns. The last time I fed market prawn was few days back.

I tried to reach for my arowana but it refused to go near me.

What should I do? How can I get help to remove the foreign object?

Thanks in advance.

YouTube Video