I got some albino tiger barbs from a local pet store, and one of them had inflamed gills and one of the gills was pointing outwards. I took that one back and got another one that looked healthy. After putting them in my tank I noticed one of them had red gills. Do you think it has gill flukes or some other parasite, or did the water at the pet store have too much ammonia? What is the best medication to get for this? How prone are my other fish to this? I really dont want my old rosy barb to get this. thanks