Drop eye cause by head trauma

[y26tan18]

IMO and experience head trauma is at least a trigger for DE. It may also be the arowana can't recover from such because of the lack of use of the muscle around the eyes, which seems to be much more the case with silvers. Blacks, asians and aussies may be more apt to recover from the trauma.

As for the arowana looking down or up, well I have two perfect 27"+ black arowana, no DE. Neither of these two fish look up or down, their focus is forward. They may catch something with peripheral vision, but do tilt up or down to investigate such.



Wow wonder why beach balls work yet ping pong balls have been dispelled as a myth.

so it is the lack of eye exercise that causes DE ? Meaning an Arowana in a bare tank is more likely to develop DE, then a planted or decorated one ?

 

[8usmickey]

Okay guys. Check this out. Might sound dumb.

This is For those of u who dont have moon light or night light for ur aros during night time in which u leave ur aros in total darkness.

Turn ur ROOM night on from total darkness and look at ur aro's eyes. Mine was looking downward completely and then went to normal. Kinda of freaked me out


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[Rivers2k]

Wow wonder why beach balls work yet ping pong balls have been dispelled as a myth.

I don't know never had an arrow with DE myself just reporting what I saw. This arrow would have eaten a ping pong ball. Thats why I guess he used the bigger ball.

 

[Rivers2k]

several members including my self have watched our aros hit then get de instantly after. looking down is not a cause. if it were then wild aros would have it. they have to look down for preds, food, and other fish. they dont just eat bugs out of trees.

1. Who is to say no arrows in the wild ever get DE

2. Are you saying arrows in the wild never hit there head? I am sure some have been startled and hit rocks or something.

3. In the wild Arrows have stimulation above them not just below them. So they are looking up and down not just down all the time. Think if you were in a lake looking up there is movement from trees, insects, other fish, birds. Then in a tank looking up there is black canopy no reason to look up ever. Like I said I have never had an arrow with DE so this is just how it was explained to me and it seemed logical to me.

 

[Gandalf]

DE is definitely not from looking down in a tank. Arowana's dive down to sand beds in the wild to eat river shrimps. It is possibly caused be head trauma. I believe it is just an effect of in-breeding. The reason it's in silvers more then anything else is because silvers are most commonly kept and therefore most commonly bred...Just like six-toed cats, it's just another effect of to much breeding.

 

[dayak]

im not sure if its caused by head trauma, silver aro supposed to be looking up in the wild and they do moves their eyes alot more unlike its other families.
i had silver aro with 1 dropped eye the other is normal i dont recall its ever hitting a tank or wall head first to speculate the head trauma, it did jumped out once during feeding but it flopped body first.
i think its due to limited space of tank set-up, since 99.99% silver aro with DE kept in a aquarium tank.
didnt realized OP were talking about black..no idea about black but i would think its the same but might be not, they says black dont get DE..too little of prove to say that black dont get DE tho atleast in internet LOL

 

[sbuse]

1. Who is to say no arrows in the wild ever get DE

2. Are you saying arrows in the wild never hit there head? I am sure some have been startled and hit rocks or something.

3. In the wild Arrows have stimulation above them not just below them. So they are looking up and down not just down all the time. Think if you were in a lake looking up there is movement from trees, insects, other fish, birds. Then in a tank looking up there is black canopy no reason to look up ever. Like I said I have never had an arrow with DE so this is just how it was explained to me and it seemed logical to me.

i didn't say it wasn't possible. i said you don't see them. now here is a reply to your statement.

in the wild de would be a crippling defect to get, couldn't focus to catch pray. we feed our aros so they continue to grow since they dont need to see food to eat it in a tank, take blind gars and hao's blind hs silver aro for examples. the aro would be weak from having to work to hard to eat and would fall to predation easy. not to mention the wild aro with de would miss pray more and more hitting its head more and more worsening the de to the ultimate demise of the fish through starvation or predation. all this is hinged on head trauma being the only cause of de. farming and inbreeding could ultimately be the ultimate trigger to poor genetics resulting in a weaker fish against de, but we will most likely never know.

 

[Redbellypiranha]

The cause of drop eye is by first because of the lights which causes them to look down, also the biggest cause of drop eye feeding too much of fatty foods such as goldfish.


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[sbuse]

The cause of drop eye is by first because of the lights which causes them to look down, also the biggest cause of drop eye feeding too much of fatty foods such as goldfish.


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you should stop now before you look like dayak.....

 

[dayak]

you should stop now before you look like dayak.....

i think his theory or speculation is as valid as DE cause by the head trauma if not more.
if you puta very bright light about less than a foot right on your eyes for atleast 8 hours a day.. what will happen to your eyes?
you will atleast try to avoid it right but you stuck in your little room.
now imagine than to a more sensitive and active eyes than human eye