I added 3 Dwarf Gouramis to my 20 gallon the other day but all of them seem kind of lathargic, they dont swin around much. One in particular is one of my 2 Females, she is laying on her side on the bottom of my tank breathing kind of heavy. What could this be and what should i do. Could it just be a bad fish(i got these from walmart. My tank water is fine its at 78 degrees and came from my established 55g, No ammonia, no chlorine, Ph is around 8.0, not quite sure about nitrates and nitrites though. I really feel bad about having to leave this Gourami alone allday. Should i isolate her, no one is messing with her in the tank.