Drop Eye = genetics or consequence?

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If it was genetics then all the silvers we see for sale would have to come from a very small gene pool as silver can still be wild caught I find this very hard to believe
 
Who's to say that the condition has the same origin in silvers, as it does Asian aros?
 
I don't see what the big deal about find out what causes is

If you don't like drop eye don't buy a silver get a black or jar it's as simple as that to tell the truth

I can't stand drop eye so would never buy a silver and have only ever kept black and Asian aros yes Asian aros can get drop that's why I have done as much as I can to stop it

Out of all the things I listed I have no idea which one has helped or even stopped drop eye on the 20 + aros I have kept or the 25 years I have been keeping them

One thing I do know is silver are cheap so it wouldn't bother me as much if it got drop eye compared to a $2k asian that may also develop it

I go as far to say I hate drop eye that much that if any aro I own got drop eye I would sell it asap no matter how good the fish was in other ways
 
T1KARMANN;4701331; said:
I don't see what the big deal about find out what causes is

If you don't like drop eye don't buy a silver get a black or jar it's as simple as that to tell the truth

I can't stand drop eye so would never buy a silver and have only ever kept black and Asian aros yes Asian aros can get drop that's why I have done as much as I can to stop it

Out of all the things I listed I have no idea which one has helped or even stopped drop eye on the 20 + aros I have kept or the 25 years I have been keeping them

One thing I do know is silver are cheap so it wouldn't bother me as much if it got drop eye compared to a $2k asian that may also develop it

I go as far to say I hate drop eye that much that if any aro I own got drop eye I would sell it asap no matter how good the fish was in other ways


Oh dang that's pretty harsh on the fish! DE isn't appealing, but if i raised a fish from when it was a little fry and it developed it, i'd still have attachments to the fish. But you're right, it would hurt me more if it developed on an expensive fish.
 
i was under the impression that a fish with drop eye (from developing it in a tank) can often be cured by placing it in a pond. maybe the fish seen in the pond picture with drop eye were put there to fix it or had an injury. i dont think its "poor" genetics but something we can expect from arows by placing them in an environment that they have not evolved to suit. so in this, the genetic of arows are what they are, and we give them a tank that does not suit them so well.
if you look out toward a tv a long way across the room and then force yourself to quickly look down at your lap and toward your neck and focus fast and do that again and again you will get eye strain and might even be able to feel the extremity that your eye can go to and feel a little pain.
so i think the action the fish does is at its extreme point of what its eye will allow.
to do so means that the top muscle needs to stretch out and the bottom muscle to pull in tight, over time you might get some sag happening. some arows evolved in different habitats will have ability to make this movement without as much strain.
to see if this theory holds weight we could check out the morphology work the scientists did in the paper on the different varieties, then also check out the eye position on leis and compare that to jars. the leis seem to have an eye position more suited to taking insects and may explain why leis seem to get it more than jars.
it might be enlightening to know what form of asians get drop eye the most and then check the eye positioning and feeding habits compared to the ones that are least vulnerable. anyone have any ideas on which colour forms get it more so?
the other possibility is that some decent percentage is from an injury and maybe even from hitting the glass wall. lots of theories and a few of them or all of them might hold true for certain individuals. im not gonna be one eyed on it!

if you think about how both human eyes merge what each one sees into one picture..and fish have eyes either side of the head.. so they would probably be set up to merge the overhead or forward veiwpoint together.
 
is it not true that a silver will suck in an algae and other windblown scum off the surface in its native habitat?
i thought i read somewhere that they can seek this foodtype and are set up to deal with it.
 
the guy in that link says he thinks its genetics, like its a genetic linked problem between generations maybe, but then he does pose a question that basically tells that the diet is different in the wild to the pond or tank. so right there we have a different factor- that does not mean genetics is the only thing being controlled for.
certainly a big difference can be the movement an arow can acheive in the tank and everything that moves is up close. the fish swims a foot that way, a foot the other way.
backtracking on things all the time. we would all pop an eyeball or our necks if we had to chase insects down from now on and never got to see them from afar and move in on them.
 
The genetics and morphology obviously makes some aro's (silvers) more prone to Drop Eye than others... Mine got it from trying to jump out of the tank, but it probably would have developped it anyway seeing as there are many fish underneath it, that i feed live fish (so obviously the aro chases some of them too)

I plan on moving hiim to a pond over the summer (as soon as that comes around) and hopefully that solves the Drop Eye issue for him... I just hope he doesn't jump out... it would be a foot and a half high and a half foot long jump for him to get out, but i know that's easy for them.... anyway, it has to have some sort of environmental and genetic cause... it's a mixture of the two
 
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