+1. Definitly possible, need plenty of hiding areas, and I'd say no less than a 120 maybe bigger, one guy did it in a 150 I believe.Can be tried but will need a big tank. Lots of decor and space to allow to hide if needed. I've done it prior without issue. Other instances weren't able to commune also cause sex cannot be fully determined.
Worth a try but be prepared to separate in case.