Hi my girlfriend wants to introduce tinctorius of some morph to our tank which currently holds bumble bee walking toads (Melanophryniscus stelzneri). I am trying to tell her that at least one of the groups will die, either the bumble bee toads from too high a humidity or stress or the darts from too low a humidity or stress. Could people please respond and tell her how bad an idea this is, or if I happen to be wrong tell me that i'm wrong. She keeps saying that she just wants to throw one in there. That she doesn't think it will be that bad. Please tell her.