Stocking ideas for a 75 gallon?

I would put some of the fish from your 110g in it, are you aware that silver arowanas grow to 3' and that a 110g tank is only big enough for two oscars.
Very well aware of my aro's potential size 36"+. I am having a home built over the next few months with plenty of room for a DIY pond in the basement. The aro and a few motoro stingrays final home in my "daddy room". I am pretty well off with my current stocking and just wanted idea's for the spare 75 I picked up.
 
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