How to stock a 210?

[Gummy Walrus]

I have one foot long Pacu (no pics)
at my LFS they have a black leopard eel, would that with my pacu?
Any other ideas for stock? I like bichirs, just any thing that would not out grow a 210.
And datnoids make me

 

[tigeroscar1996]

The pacu will keep growing and growing, so he'll need lots of space to himself. Some sort of arowana and a large pleco would be an awesome combo with ur pacu. Anyway, if you plan on keeping the pacu you should have very few fish in the tank.
My pacus about 1 foot and hes in a 150g with 2 piranha and a common pleco thats also about 1 foot.