My 12" arowana has it in his right eye, and he got feeders about one time sence i;ve had him so i doubt its that.
feeders, fat and drop eye
- Thread starter wizzin
- Start date
Sunpoe;627257; said:
Reason being there are less distractions to the aro. In a pond, its pretty much darker than your glass tank, where the lights are on, whether its the lights in the room or the tank light.
Another site that is specificly for aro's have suggested to cover all sides of the tank with black paper/cardboard and leave an 1" strip/gap on the front piece from your tank's waterline. Some swear it works to cure DE, because it forces the aro to look up and out thru that 1" gap from the waterline.
There are a lot assumptions for DE:
1-high fat intake
2-BB tanks that reflect shadows
3-feeders
4-genetics
5-poor water quality
6-bottom level fishes
etc..etc..etc..
Is there a real cure for it? Who knows. Some say there is and others no. Unless its really bad DE, where the eye looks like its going to pop out..it shouldn't present a problem per se.
I personally tried the covering all sides of the tank many years ago and "to Me" it seemed it helped my silver's left eye a little. While my brother did same, and it didn't get better on his aro.
So, the only way is to do a real search from the overseas sites that are specific to aro's and see what techniques they use and try it for yourself.
if you keep floating plants it helps DE a bit. keeps the fish looking up. rather then down at the other fish swimming below him. i have never had drop eye. but i see it ALOT! with other keepers. once the fish gets DE it loses its appeal.
I do not believe that drop eye is caused by fatty deposits or as a defence mechanism. Why would fat build up in that particular spot? If it is fat then it will go away if you starve the fish and force its body to consume itself to survive. If its a defence mechanism then the aro would all have it. It would be something that every aro has from the wild because Im sure there are lots of predators in the wild for them to keep an eye out for.
My theory is that a fish that is meant to look up for food is now forced to look down because that is where the person that feeds them is located. That is why it goes away when they are stuck in a pond, they then have to look up again. If you think about it there are muscles pulling the eye down and up. If the fish does not use these muscles to pull the eye up because it spends all its time looking down, then they deteriate and do not do the job properly anymore. You put the fish in the pond their muscles are forced to work again and so strengthen and are again able to pull the fishes eyes back up. The same will happen to a person if they never use a particular muscle (eg: people in space lose most of their strength because the muscles dont do work in zero gravity)
If anybody does not concur with this theorythen please provide one of your own. However nobodys ever given evidence for the other theories. nobodys cut open an aros eye to see if there really is a fatty deposit behind there, nobodys ever kept two in exactly the same conditions but feed one on feeders and the other on something else as far as i know. I think that "a defence mechanism" is absurd aswell. there is so much more for a fish in the wild to look out for so why do no wild fish have this problem? Again there is no evidence for this nobodys experimented with it. There is however evidence for my theory as on this thread people have stated that changed the fishes point of view causes DE to dissapear (I bet it didnt take very long either, those kind of muscles wouldnt take long to become fully functional again) which strongly supports my theory that it weakened muscles.
Please feel free to slam me down if you dissagree. I enjoy a good debate!
My theory is that a fish that is meant to look up for food is now forced to look down because that is where the person that feeds them is located. That is why it goes away when they are stuck in a pond, they then have to look up again. If you think about it there are muscles pulling the eye down and up. If the fish does not use these muscles to pull the eye up because it spends all its time looking down, then they deteriate and do not do the job properly anymore. You put the fish in the pond their muscles are forced to work again and so strengthen and are again able to pull the fishes eyes back up. The same will happen to a person if they never use a particular muscle (eg: people in space lose most of their strength because the muscles dont do work in zero gravity)
If anybody does not concur with this theorythen please provide one of your own. However nobodys ever given evidence for the other theories. nobodys cut open an aros eye to see if there really is a fatty deposit behind there, nobodys ever kept two in exactly the same conditions but feed one on feeders and the other on something else as far as i know. I think that "a defence mechanism" is absurd aswell. there is so much more for a fish in the wild to look out for so why do no wild fish have this problem? Again there is no evidence for this nobodys experimented with it. There is however evidence for my theory as on this thread people have stated that changed the fishes point of view causes DE to dissapear (I bet it didnt take very long either, those kind of muscles wouldnt take long to become fully functional again) which strongly supports my theory that it weakened muscles.
Please feel free to slam me down if you dissagree. I enjoy a good debate!
LoL...nobody needs to slam anybody over a disagreement. I have seen some Indo farms & also the Japs correct DE by operating & removing part of the insides of both the lower lid as well as the upper portion. The fish does look better, however I do not know if the fish reverts back to having DE after a prolonged period of time.
piscevore;630791; said:
Nah I really dont mind if people want to get passionate with a reply, it shows they have an avid interest in the subject at hand, by slam me down I meant put me in my place if you can! Those pics are very interesting. Thanks mate thats the kind of evidence Im looking for. can you give us a url for the pics, does it explain in detail what they are actually doing? Are they actually removing that fatty deposit? I need to read the article that goes with it if there is one and Im sure everyone else wants to aswell so please url.
Im still sticking with my theory for now, if it was a fatty deposit then DE would not go away just by changing the fishes point of view (eg: putting it in a pond). However if it is someone removing the fatty deposit and the fishes DE goes away then Ill have to reconsider. Maybe a combination of all of the above factors.
One of the problems is Ive NEVER seen a Black Aro in Australia. AAAHH you guys get all the good fish!!!
PS: maybe that operation works by pulling the muscles tighter? Im not an icthyologist but just a suggestion. Anyways Ill wait until Ive read the article before I make any speculations, I might end up looking mighty silly at the end of the day!
Im still sticking with my theory for now, if it was a fatty deposit then DE would not go away just by changing the fishes point of view (eg: putting it in a pond). However if it is someone removing the fatty deposit and the fishes DE goes away then Ill have to reconsider. Maybe a combination of all of the above factors.
One of the problems is Ive NEVER seen a Black Aro in Australia. AAAHH you guys get all the good fish!!!
PS: maybe that operation works by pulling the muscles tighter? Im not an icthyologist but just a suggestion. Anyways Ill wait until Ive read the article before I make any speculations, I might end up looking mighty silly at the end of the day!
piscevore;630791; said:
My silver is 12" and has no signs of "DE" as of yet. My observations are of my fish and this may differ for more mature aros.
Looking at him from head on I notice the shape of his head angels inward slightly and his eyes are angled the same, so the aros eyes are facing down more than up. I believe aros have peripheral vision, as mine can see back behind his head, this I noticed trying to touch his back half. So to state that the aros eye is forced downward to search for food or as defense I believe is incorrect.
I could understand this point of view if the aros eyes were facing upwards but there not. Sorry I wish I could post pics to show my view.
