Hey, congrats on starting an african tank! I think all the advice you got so far is great. I guess thats why this site is so good! I think that fish and mainly africans are like dog breeds. They might have tendencies towards certain behaviors, but you never really know untill you try.
I think the main factor for your red zebra will be his/her size. If you get less agressive fish, get them bigger, if the breed you want is more agressive then get them smaller.
As stated before, with good water quality, crowding and lots of rocks, you can't go wrong!!
Let us know what you do!