depends on your fish. i have some fh that do fine with other fish. then i have one female that even kills plecos. i have a male that like with a female bp and hardly ever fights with her. hybrids are hard to predict with their temperment and just because something works for one fish doesn't mean it will work for another. even more than that, sometimes what worked for your fish in the past may not work in the future. sometimes fh are fine with tankmates until they snap and kill. it is a crapshoot.