good question.. any mature arows no drop eye..

[Red Devil]

I'm still going with genetics. My black aro crack the glass just as much as all my silvers did and he is DE free at 24" I think there is something genetic that is causing this in silvers

i agree that it could still be a genetic weakness in the muscles that hold the eye.. and then the trauma helps it drop .... but i think the actual cause is banging the head...

 

[Red Devil]

dont hear much DE's on asians and aussies, most are on silvers. so i assume this thread are for silvers?

when i first started this thread i did not think it was exclusively silvers but as it turns out it is 99% silvers..

 

[Exile]

My 10" silver arowana has a slight downward angle to his right eye after a severe run with the glass canopy. He hit the canopy twice with good solid "thuds" each time within a few seconds. Got up turned the lights on, water everywhere... He had gouges on the top of his head just behind the eyes. I have been feeding him silversides since hes come into my care at the 8" range.

Just wanted to contribute to this analysis. Good luck.

 

[Red Devil]

anyone with older arow without drop eye..