They will be some sort of zebra we weren't really impressed by the fish they had for sale, Except for their display tank we'd happily take (lol and we've already tried) their ice blue and aurora off their hands
The fish they had were really small anyway probably at least half to a third the size of being mature and you may run into problems with just a pair or trio. Your tank will look better with more fish in it anyway.
We have never done it that way before maybe someone else can help we just have a heap in a 4ft (soon to be a 5ft) tank and remove holding fish when we notice them, lots of rockwork and targets mean that any one fish doesn't take too much of a beating and even holding females are safe.