Silver and oscar..not happy

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waynes world

Candiru
MFK Member
Oct 12, 2010
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North Manchester UK
Hi all, just got a silver aro today, about 4 hrs ago and it is fine but for the oscar we have doesnt like it much, it keeps seeking it out and going for the aro. We have other fish, 2 severum, 3 silver dollars,2 rays and a tsnxrt catfish.
The aro is near 4 inch long as is the oscar

All is fine except for the oscar, the thing i am bothered about is the aro, the oscar can go but i need to know if the oscar will end up being ok with it?

Also i need to leave them over night, i can take the oscar to a LFS tomoz if need be.
 
The oscar may eventually get used to it or may just keep bothering it until it dies. Is it actually biting it? Or just charging it and chasing it? By the way how big is your tank? These are some big fish and for all of them you need a huge tank.
 
I have just put the oscar in its own tank as the silver is the main concern.

The tank at the minute is a 150g (uk), i will have a 1200-1500g tank in a few months for them.
 
Oscars shouldn't be kept with aros, unless the aro is triple his size.
 
I grew a 6" silver with a 6" albino oscar.

They were fine until the Oscar got about 11" and the Silver was about 15". The oscar would ram my Arowana and eventually my arowana snapped and tore his skull wide open in about 2 seconds flat. Now the oscar lives in a separate tank.
 
Several members here have lost arowana to oscars. You just have to decide if it is worth the risk. Make sure the tank top is well secured, with the oscar chasing the aro you can expect it to jump.

What are the sizes of the two fish?
 
They are both roughly 4 inch.

The aro is finre this morning and is the oscar in a seperate tank, not good enough to keep him in as it a small sump, i have him in one section untill i can get him to the LFS.

Not worth keeping the oscar as the aro is the main concern .

Think the aro is going to be a nice fish once grown, he has slight orabge tint to his fins and scales, is this normal for a silver aro?

thanks

wayne:)
 
an aro that small should be kept alone, and start adding docile tank mates after around the 10" mark.
 
aidenb;4664067; said:
an aro that small should be kept alone, and start adding docile tank mates after around the 10" mark.

This. Arowana's are very easily bullied when young, especially by Cichlids. When he gets a little bigger, and I'd say the 10" mark is a fantastic estimate, you should have a little more success with tankmates. My father has a 16" Arowana with a 8 to 9" Midevil and 7" or so Jack Dempsey, and made the rather unfortunate choice to add them all together as juveniles...the Arowana had a very hard time adjusting to being the new guy in the tank and was picked on a good bit, but he got by and hit his monster growth spurt and now is absolute boss of the tank, clearly dictating where his own territory begins and ends, and even eating some of the smaller cichlids...

Also, when I was much, much younger, my dad had to give an Arowana to a friend of ours who owned his own LFS, and the tank the Aro was in did not have a lid at the store (don't ask me why, lol -shakes head-) and it jumped out and into the Oscar tank and bit the Oscar in half. Keep in mind these are both Silvers we are talking about and not even Jardinis.

The Aro and the Oscar might be able to get a long when the Aro is much, much bigger, but as juveniles it isn't the best idea. Even still, there is no gurantee that the Aro will tolerate the Oscar when he is 2 foot plus, it really depends on the fish.
 
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