Its true asian aros are a different species from silvers, but how would you explain that only a couple asian aros get DE if its caused by genetics? And i note that asian aros rarely flip out and bash their head on the glass. Id still think its the head trauma. We all know aros are jumpy fish. They sometimes jump out of water to catch food. I dont see how one unlucky jump couldn't get them hit on the head.MsMassPoly;2690069; said:
about the fat drop eye theory
- Thread starter dvs
- Start date
i saw a movie at the boston aquarium in the 1980's there were many with DE.I wish i could direct you to a link or video but i can't.Maybe some one else know the film?
sodenoshirayuki;2690050; said:
You'll have to do the bottom too.
Actually the only way I think this could be done would be a huge tank, say 10'x10', with no cover. Possibly slopped sides or at least round. Basically simulating natural conditions and eliminating most all potential head banging hazards.
So its just a coincidence that asian aros rarely get freaked out and ram their heads, while silvers get freaked out at every small thing and do ram their heads?MsMassPoly;2690122; said:
my community of silvers never just freak out and smash into things.They do jump at the top all the time?
The theory of genetics makes more sense to me, as it explains why Asians and Black arowanas seem less prone to DE than silvers.
However Ive had a situation where ive moved my silver (8") from a 75 to a 180 gallon. He became very restless in the bucket during acclimation, bumping into every part of the bucket. By the time i moved him into the 180, the right eye was slightly dropped. Possibly due to head trauma?
So I guess both theories have their own validity.
However Ive had a situation where ive moved my silver (8") from a 75 to a 180 gallon. He became very restless in the bucket during acclimation, bumping into every part of the bucket. By the time i moved him into the 180, the right eye was slightly dropped. Possibly due to head trauma?
So I guess both theories have their own validity.
MsMassPoly;2690136; said:
Again, blacks aand silvers are different fish. Blacks seem to be immune from DE.
MsMassPoly;2690141; said:
Good to hear, I'm sure the large tank helps. I know you have one large silver without DE. Have you seem any of your others develop DE? Considering all your aros you got when they were quite large. Other then your black have you grown out any of your aros from around the 15" range?
