I had just gone to have a quick look at my fish until I saw one of my female guppies with horrifying fins. It's definitely not fin rot as none of the others have it and the water quality is merely perfect. It was being chased by the fancier male guppy and kept being bitten at and its fins looked shredded and it swam with real effort. It tries to hide in the corner all this time. I've only found this out today. I was thinking I'll put the aggressive guppy in a bucket with the aquarium water in for a week and I'll do a water change every day. Does anyone else have any suggestions? Or am I doing right? I have 4 platies (1 Male, 3 females) and 6 guppies (2 males, 4 females).