Jardin Arowana Tank Mates

I'm going to set up a 210 gallon aquarium and I was woundering about sdome tank mates that he can be with the arowana is going to be 4 inches. Still doing research but I wanted to here some opinions!

 

I'd do a big school of Metynnis Faciatus.

 

I'd do a big school of Metynnis Faciatus.

It looks like a school of 10 would set you back at least $300, probably more.

 

It looks like a school of 10 would set you back at least $300, probably more.

would some big plecos work?

 

It looks like a school of 10 would set you back at least $300, probably more.

They sell for $15-20 each in my area. There's a guy on Aquabid that sells 6 for $30.

 

They sell for $15-20 each in my area. There's a guy on Aquabid that sells 6 for $30.

ill check right now to see if he has some
Are the strriped silver dollers diffrent from regular one?

 

Are the strriped silver dollers diffrent from regular one?

They're a different species. Metynnis hypsauchen and Metynnis argenteus are the most common silver dollar species.