Hi all, just wondering if anyone can shed some light on what is going on with my platy's fins? The top pic shows her yesterday, the bottom pic was taken this morning. You can clearly see the cloudy patches on her tail fin today. She is acting normally, no clamping, no fuzzy stuff or breakage of fins, just these cloudy patches. I'm a bit worried because i have only had her 4 days. My husband won't allow me to set up a second tank so i can't quarrantine new fish so it is always a risk to buy new fish. She came from a pet shop where all the fish in the tank appeared to be very healthy, no dead or dying fish and no sign of white spot etc. The guy at the shop said they had been there for about a week. Any ideas of what it could be?