jd0107

One of the arowana fish died due to unknown cause. There's nothing wrong with the water. I hope anyone would help to analyse what cause the death.



Found unknown substance at the bottom of the aquarium.





The scales are all swollen.



Eyes too..



Do arowana has this at it's vertebrate?





Found these unknown greenish substance in its mouth and intestines...





Any help is appreciated.

Amanda

Welcome!
Oy vey. Wasn't ready for those pics this early in the morning.
It looks like dropsy to me, with the looks of the scales.
What exactly were your water parameters?

aquarist48

Hello JD and Welcome to Fish Lore. So sorry to hear that you lost your arowana. With it's scales raised the way they are it appears to be "pine coning" along with "pop eye". I'm not sure as to what is going on inside the fish. With the two I've mentioned leads me to believe it could be ammonia poisoning. Can you give us some test results for ammonia, nitrite and nitrate? What size tank was he/she in? How long did you have him/her? The more information you can give us the more responses you'll receive. Too, when you have time if you would be so kind as to fill out your profile aquarium information would be a big help as well.

I see that you've just started fish keeping. This link will give you information concerning the nitrogen cycle that is crucial to fish keeping. Just in case you aren't aware of it
:http://www.fishlore.com/NitrogenCycle.htm

I"ve also edited your Thread Title to read GRAPHIC PHOTOS
Thanks!
Ken


Again, so sorry for your loss.
Ken