Northern Spotted Barramundi Scleropages jardinii

Hi

I am thinking of getting one o these to go with my polypeterus endi nd miami gar.

The endi is only at 2 inches and the arowana i will be getting around the same size. The endi is in a grow out tank at present and i thought about the arrowana joining him.
The gar is at 8 inches and awaites in the big tank with two soribum lima's and a severum.

My question is. Would it be compatable and would it be wise to put it in with the poly in the grow out tank?

Can someone tell me more aqbout this fish/

Thanks

Whooops!....I have just spotted the article on one.
Best to play sae and leave it alone