She had the stripes when I bought her, I did not know about "stress stripes" and thought she was unusual. She is in a 20 gallon with 5 Glo fish, 3Pristella Tetras, 1new Otocinclus and 2 Dwarf Frogs. She seems very relaxed and loves to follow the frogs around! Ammonia, ranges from 0-.25, last test was 0 on nitrites and nitrates. I do have hard water, I do use Prime in all water and I do 50% water changes weekly. I have tried several foods, but the only thing she wants are bloodworms. I have some floating live plants in the aquarium that she likes to rest in some times, she also likes her meals in there away from the others. She swims the tank, watches the others and appears to poke around the bottom of the tank a lot, looking really curious. I have only had her for 2 weeks, could that be part of the stress?