I just finally treated my tiger barb and my one mollie for ick and tonight i was watching them as usuall and i notive another one of my mollies has something around its mouth. I just recently took out a barb that was ataching all my guppies and the smaller tigers so i dont know if stress could be a reason for it. The mollie that is now sick has what looks like a kinda im guessing maybe ick but im not sure. Its only around the lips and the lips are really puffy and white. Just the lips thats it no where else. What is this and how can i treat it and not kill all the tetras that are in my tank?