When should i move my asian arowana?

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Brandon Beck

Feeder Fish
MFK Member
Oct 20, 2025
10
13
3
31
Medicine Hat, AB, Canada
I have a blue base crossback asian arowana roughly 10", I have him in my 125 with a school of geophagus. Painted back and sides white. His final tank will be my 470, should I keep him in the 125 for a while or transfer him over? Hes been in the 125 for a couple months now. He will only eat dew worms and shrimp. Ive noticed he likes to go down to the bottom and lay in the same spot, he does pace around the tank but Will often go back there like he's resting. Any help is appreciated

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You can Move him anytime. If he's sitting on the bottom in the same spot with fins tucked in that means he's not happy.
That might not have anything to do with the tank size though...
Maybe something else....
He looks good to me
 
If it were me I would not put it in with those rays until he is 1.5 times longer than their disc width. He is at risk for getting suffocated by them at night, especially if he lays on the bottom.
 
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