We had two very large Borneos in 1600 litre tank at hubbys work, in with Oscars, large Silver Dollars etc.. everything was fine and dandy, one of the Borneos was 40cm, huge boy, pretty placid, just a vacuum for food :lol:
I would say if you have a very good sized tank then I would try it.... Chocolates can be a bit more sensitive in nature tho I have found with bulshy fish.