i just got home from work and in checking my tanks my female blue gourmis looks as if someone dipped her in a can of dark blue paint...... her back half is much darker then normal and much darker the the front half of her. there is both a male and female in the tank with other cohabitants. it is a community tank. cant post water params till my friend gets home from work so i can get my test kit back.water temp is fine last water change was yesterday. and her color was fine then. all other fish look and act fine she is not acting weird just color is off. any ideas till i get my water tested??