I'd do that.
I love tiger barbs and can't imagine not having a tank with some in, but they are really quite savage little beasts and it's
very hard to find fish that will live with them; zebra loach and plecs are the only things I've had any success with.
They can and will nip other fish; even if you have a big shoal of them (which is often advised as a way of keeping the aggression within the species group). Just as an example, I took in a group or four black phantom tetra, which are usually classed as one of the more feisty tetras, and put them in with my two dozen tigers, and overnight (so that was in the dark; they
should have been sleeping!) the tigers had killed one and almost completely 'de-finned' the rest