taking things in a different direction with drop eyes newest theory.

[wizzin]

meant to edit. delete this one.

 

[DeLgAdO]

John looks like delgado's aro pictured in the first post has it in the right eye. The 22" silver I adopted last month has DE in it's right eye, also my 16-17" silver looks as if it is developing DE in it's right eye.

nah she has it bad in both eyes

 

[DeLgAdO]

why only(?) left eyes with silvers ???

johny its merely coincidence that youve seen silver arowana with drop eye in the left eye, they get it in either or, or in both, there really is no predicting which eye it affects first.

in this footage i recorded at sea world, that silver has drop eye in the right eye, the left eye is perfectly fine.

http://www.youtube.com/watch?v=alBw5pdMyZA

 

[johnptc]

johny its merely coincidence that youve seen silver arowana with drop eye in the left eye, they get it in either or, or in both, there really is no predicting which eye it affects first.

in this footage i recorded at sea world, that silver has drop eye in the right eye, the left eye is perfectly fine.

http://www.youtube.com/watch?v=alBw5pdMyZA

now thanks

 

[DeLgAdO]

now thanks

awsome

 

[Steve_89]

why, almost always, is it the left eye ????????

does anyone have a silver the DE of the right eye ????

The silver I just sold had DE in the right eye ONLY.

 

[Crustman]

Nice video Delgado. I still believe the head bang theory. I saw it happen with my fish. Yes I feed my fish once a day; salty sea scallops and shrimp and I also add salt to my tank. I was told that my Silver was wild collected but have no proof. Inbreeding could be a problem along with other factors, especially head banging. Why can't someone in a University system study this for PhD research in Aquaculture or something and write a paper on it? How do we know that a South American researcher has not tackled this subject? We can type here til our fingers are tired and when the thread dies another one will pop up in a few months with the same ideas

 

[wizzin]

I do know that the head bang was the cause of my silver's DE. It's his right eye. It took about a day for the DE to develop after the impact. He just freaked one day when i opened the top to feed. I think he was sleeping or half out of it and I scared him.

Could be that the muscles that pull the eye at the top to keep the eye level are very fragile and that an impact easily damages those muscles. Since they're fragile, they may never heal. Might explain why the fiberglas or pond or covering the sides of the tank works temporarily with Asian aros too. While the treatment causes them to look up more strengthening the muscles that cause the eye to look up, once that need is removed, the weak top muscles can't counter the effect. MY 2cents.

this would explain how the surgery fixes the problem too. Imagine taking a section of elastic and anchoring it to two pieces of wood with slack in the middle of the elastic. Now cut out a section of the elastic and super glue the two pieces back together. It would heal tight again.

As for the right eye vs left eye, it could be the psychology of the fish. As in right brain vs left brain. If the fish tends to jump with the right side up first, then the right eye gets damaged. If it tends to jump left side up first, then the left eye gets damaged.

Maybe blacks have stronger muscles in their eyes. Maybe all of this is a result of captive breeding and the captive fish's lack of needing to look up causing those muscles to weaken as a genetic trait.

thoughts?

 

[Crustman]

Wizzin has shown with his great photographs of a Silver leaping and catching an insect that DE is a death sentence for a fish in the wild and the fish with DE would not compete in the gene pool.

 

[wizzin]

Wizzin has shown with his great photographs of a Silver leaping and catching an insect that DE is a death sentence for a fish in the wild and the fish with DE would not compete in the gene pool.

true, however, in that movie, they say that arowana's (water monkey) primary diet is fish, and that they feed on insects when the rivers flood into the forests. So I think the jumping for bugs isn't something that they do on a daily basis. Only when the opportunity is there, which happens in the rainy season when the amazon floods. I think they could survive in the wild on fish alone.