Hi! I’m new to this so I hope i’m in the right area. Last night my female beta’s fins were perfect! Gorgeous as usual but then today around 6pm is noticed her fins are like shredded? She’s in a 20 gal tank. On Sunday I added some new fish including a new female beta. I haven’t seen them fight or anything and all i’ve seen is them be peaceful. The other fish in the tank are, common plecos, cory catfish, guppies, platy and just put in an angelfish when I noticed the fins. She is acting fine, maybe just not swimming as strongly but like keeping it up? I have a picture of her fins last night compared to today. She’s my baby so please help me I don’t think it’s fin rot only because of how it happened not even in 24 hours. Is it possible her and the other female betta got into a brawl to assert dominance and she just got beat up a little? The other one looks fine. She also is a little more aggressive, just to the angelfish that just came in but she got over it pretty quickly.