Which would be the best tank mate for a flowerhorn?

[eyeonforever]

I saw a list of possible tank mates for a flowerhorn.  Which one would you get and why?

Jack Dempsey

Oscars

Blood Parrots

Tiger barbs

Green Severum

Green Terror

Ancara

Texas cichlid

I want them to grow up together and not pick on each other for size difference.  I've heard that some of these fish will interact with people which would be great and would defintely be the winner?  What do you think?  Or would some other fish be better?

[Struggle]

My son and daughter-in-law have a flowerhorn and nothing else can be in the tank with it.

[shkote]

My Flowerhorn is a mean, space greedy, territorial monster. I can't imagine anything living peacefully with him. He doesn't even love the idea of sharing his space with a filter and heater and attacks them daily. 

[Puffandstuff]

While some fish can work, like the list above. I've kept flowerhorn, and while it can be done, the fish display much much nicer alone. There's no competition for food, sparring to mark them up etc. You can grow a very attractive fish alone. Unless you really want to have tankmates. 

[Fishmonger_X]

Nothing. The Flowerhorn will probably kill anything...... it's a one tank kind of fish....