Arowana substrate...

[JOSCAR05]

Which do they prefer? Bare, sand, gravel etc?


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[David R]

Given that they are a surface dwelling fish I don't think they really have a "preference". That said I would avoid large stones that could be picked up and swallowed, all my arowana have eaten shrimps off the bottom of their tanks at some stage.

 

[Evz jardini]

+1