ha ha ha yes maybe thats why my phone is safe.. DE or Not.. as long as they eat.. stay healthy and they def can make out the fish fillet when it hits the water.. i'm happy.. whats your theory on DE brian.. i believe its mostly head trauma.. about my aro jumpin to grab my phone.. shouldn't we be considering that the target, say my phone, is not like an insect.. not anticipating an attack and prob not being stationary?Another Drop Eye Thread... Pfftt....
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ha ha ha yes maybe thats why my phone is safe.. DE or Not.. as long as they eat.. stay healthy and they def can make out the fish fillet when it hits the water.. i'm happy.. whats your theory on DE brian.. i believe its mostly head trauma.. about my aro jumpin to grab my phone.. shouldn't we be considering that the target, say my phone, is not like an insect.. not anticipating an attack and prob not being stationary?
Yes, definitely I believe that head trauma triggers it. I watched one of my silvers develop DE in each eye after two separate head trauma incidents. Genetics play a part but not to the point as there is a DE gene or caused from too much inbreeding. Just as a species, the silver is more prone then others, genetically speaking. I think that the lack of having to use their eyes as they would in the wild leads to the muscles, or whatever controls and supports the eye, becoming weak over time allowing the DE to develop. This is not necessarily from not looking up, but from lack of looking forward and having to focus upon any objects.
Watching my two 27" black aros, they don't look up or down the look forward focusing both eyes on objects. Occasionally something gets their attention above or below and they turn to check it out, so I would conclude that they also have well developed peripheral vision. They are very accurate when hitting food, and this includes lunges from across the tank.
What I don't believe contributes to the DE is diet or bottom dwelling tankmates. Just as I fail to see have floating ping pong balls do any good in prevention. Maybe having lily pads or over hanging branches stocked with crickets or roaches could help out, but not an object the aro will just ignore once it has seen it is not food.
![H]-[H](/forums/data/avatars/s/44/44128.jpg?1463640742){kind=avatar}
A couple of videos to watch.
[video=youtube_share;B3hUJZ9vjQk]http://youtu.be/B3hUJZ9vjQk[/video]
http://youtu.be/B3hUJZ9vjQk
[video=youtube_share;uiCwfVGkNRo]http://youtu.be/uiCwfVGkNRo[/video]
http://youtu.be/uiCwfVGkNRo
[video=youtube_share;B3hUJZ9vjQk]http://youtu.be/B3hUJZ9vjQk[/video]
http://youtu.be/B3hUJZ9vjQk
[video=youtube_share;uiCwfVGkNRo]http://youtu.be/uiCwfVGkNRo[/video]
http://youtu.be/uiCwfVGkNRo
I am starting to lean towards bottom feeding for the cause of DE. A few weeks ago I was feeding my 11" silver hikari massivore pellets that only sink. Well as it turned out, it developed slight DE in its right eye. So I decided to cover the entire tank and leave only a few inches at the top and switched back to feeding it floating sticks. The result is astonishing, now its right eye is starting to level with its left eye. In only a week or two, its eye will be back to normal. I also had a black arowana 2 years ago that had DE. It was so shy that it would always wait for the food to sink to the bottom and then when no ones around it would eat. After a few months it developed slight DE in its left eye..!
My question is: Are DE and eye proptosis the same thing??
What I can say from experience is that bottom feeding is terrible for silver and black arowanas and DE can be helped even cured if caught early on.
My question is: Are DE and eye proptosis the same thing??
What I can say from experience is that bottom feeding is terrible for silver and black arowanas and DE can be helped even cured if caught early on.
I'm currently trying the same thing hoping to find a cure for DE..
Besides covering the tank, did you leave your tank lights on or off?
I always keep the lights off unless I'm going to feed it (no plants, bare bottom tank). When I am about to feed it I usually turn on the lights for 5-10 minutes before I throw floating pellets in. I also feed it super-worms, and shrimp. I make the worms float and I throw the shrimp right in front of the fish. Sometimes I also stick the shrimp to the wall of the tank. The lights are always turned off afterwards, but I don't think that turning the lights on or off would really effect DE. So far it is working really well for me. No more bottom feeding for silver arowanas.H]-[H;5551383 said:
Due to the large canopy on one of my tanks, One of my aros can jump to some extent without banging his head. He had slight drop eye in his left eye. If I leave the lights off and the lid open (never unsuper- vised) He is calmer. His drop eye gets better. Sooner or later someone spooks him and he leaps and bangs his head. Drop eye gets worse. My other aro is hopelessly droppeyed in both eyes. The tank top is right on the surface. any jumping results in banging his head.
