Depends. You already know the bit about making sure you have space and ample hiding places for the fish. What other fish are in the community? You mentioned bloodfin tetras. Many sorority keepers have some sort of small schooling fish like tetras in with their sororities as dither fish. If it was me, I would try it out and see how it goes. If it seems like it would be bad for the tetras, take them out and sell them to the store for credit.
Heads up: sororities are very difficult long term. Just keep an eye on everybody and give aggressors a time out if needed. I advise having a "plan b" containment plan available for a fish in case you end up with a trouble maker or a perpetual victim.
Good luck. Take pictures!