Carp buddy, if one does a bit more in-depth research about this topic instead of just perusing and regurgitating the first lines seen in a Google search, they'll find that the sentiment of most experienced Arowana keepers is that the ping pong ball treatment has NO noticeable effect on curing or preventing drop eye. If an Aro already has drop eye it's nigh impossible to get it back to normal short of cosmetic surgery.
While the exact cause(s) of drop eye is not known for sure, the main suspected culprits are:
1) genetics (esp. with Silver Arowana)
2) knocking their head too hard when jumping
3) too much fatty food (e.g. superworms) in diet
4) too strong of overhead lighting, kept on for too long
These are all pretty logical; the one I'm not sure about is whether having tank mates increases or decreases their chances of getting DE. That said, in the wild there are plenty of other fish and critters below them in the water but they rarely if ever develop drop eye.
While the exact cause(s) of drop eye is not known for sure, the main suspected culprits are:
1) genetics (esp. with Silver Arowana)
2) knocking their head too hard when jumping
3) too much fatty food (e.g. superworms) in diet
4) too strong of overhead lighting, kept on for too long
These are all pretty logical; the one I'm not sure about is whether having tank mates increases or decreases their chances of getting DE. That said, in the wild there are plenty of other fish and critters below them in the water but they rarely if ever develop drop eye.
