I have three arowana's, a silver, a Jardine sarotoga and a new addition a blue base malaysian crossback. My sarotoga and silver were getting along but I moved my toga when I bought my blue base as per instruction from who I bought it from. When I put my blue base in with my silver the silver started a strong attack taking a couple of scales off the blue base. I took the silver out straight away and put it in a separate tank because I didn't want damage on my most expensive and colourful arowana. I left it a week and hoped the blue base had achieved dominance in the tank, then put the arrows back together. They were ok all day then when the lights went out the silver was back at it again. My question is, is there any way I can get these fish to get along as I really like my silver and want both in my living room display tank or should I not risk my prized fish
Possible Arowana community tank
- Thread starter salmonface
- Start date
IMO the silver and the jar being raised together in the tank had an established hierarchy, a stable relationship. The new fish is an unknown commodity and dominance will need to be established again. The silver precives the new fish as an interloper into it's territory and must be driven out or at least submit. Weather or not this can or will happen while leaving ether one alive remains to be seen. The longer the jar is out of the tank may result in a similar circumstance if it is reintroduced. It's always dicey trying to introduce a new fish into an established tank.
What size tank have you tried them all in together ? What size ate the aros ?
I personally wouldn't risk a jardini with any other aro especially not a blue base , once it hits full size its going to want that tank to itself
I personally wouldn't risk a jardini with any other aro especially not a blue base , once it hits full size its going to want that tank to itself
What's the size different between them? My guess the silver is a lot bigger than your crossback.
If you love your silver a lot than divide the tank for couple months OR buy/trade some new silver that similar size and raise them together ASAP because once the crossback established in the tank any new fish introduce into the tank later will get the same problem you having right now. Also, you will need alot more than 3 Aros (or introduce more dithers) to spread out the aggression, take out the Jardini cause it won't do any good in future (if you can try to get a Lei rather than keep a Jar)
If you love your silver a lot than divide the tank for couple months OR buy/trade some new silver that similar size and raise them together ASAP because once the crossback established in the tank any new fish introduce into the tank later will get the same problem you having right now. Also, you will need alot more than 3 Aros (or introduce more dithers) to spread out the aggression, take out the Jardini cause it won't do any good in future (if you can try to get a Lei rather than keep a Jar)
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The tank size is a 6x3x2.5 and blue base 30 cms, toga 50 cms and silver at 45 cms I'm happy having the Togo in a separate tank i just want my silver with my blue base. They are all in separate tanks at the moment the blue base in that tank the silver in a 8x2x2 and the toga in a 6x2x2.5
^^^I knew it, the silver is 1.5x bigger than Xback, it won't work for whatever you trying, it will take years for the crossback to catch up the silver in size unless you know away to stop your silver growth rate 
^^^I knew it, the silver is 1.5x bigger than Xback, it won't work for whatever you trying, it will take years for the crossback to catch up the silver in size unless you know away to stop your silver growth rate
I hoped there was a way but thought they might have to separated always it's just my other tanks are in garage and don't get the focus they deserve I wanted all my exotics in my kitchen /dinning room display tank
If this is my case I would keep Xback singly for main display tank...no stress, no bullies and scar or torn fins...etc...A perfect Xback for main display 
*If you really into Aro community tank then I would sell those big Aro and get a set of young Aros and raise them together, soon you most likely get a dream Aro community tank...it would take a lot of courage to do that hehehe
*If you really into Aro community tank then I would sell those big Aro and get a set of young Aros and raise them together, soon you most likely get a dream Aro community tank...it would take a lot of courage to do that hehehe