My Little gouramis' fins have been niped so much by my larger Gourami they have gotten Fin rot ~_~
Is there a way (no I can't remove them cause when i place them in a bowl or cup (with any fish) they commit suicide/jump out and die) to not take them / remove them and not treat them with medicine
you'll have to separate them some how if the large one will not stop the fin nipping. and you'll need to treat them with medication if proper water changes and separation of fish doesnt work.
you should probably add some sort of medicine,because if you don't, by the time that you notice that it has gotten worse, it may be too late. Just pick up some Jungle Fungus Guard or Jungle Fungus Eliminator, or some Maracyn.