Missing Fins In About 8 Hours!

[Cookbot]

Thanks in advance for your time in helping me with these problems.

I have a fairly well set up tank(180ltr jewel) that i've had for about a year now with no problems so far untill this morning.
The main fin on one of my Bosemans has almost completely disapeared yet it was fine the night before. I don't think any of the other fish are responsible here's a list any way:

5 Clown Loach ( 1 big one at around 5")
2 Rainbow Bosemans
2 Bronze Corys
1 Common Plec
3 Silver Dollers( about 4" long)
12 White Cloud Mountain Minnow

Is there any chance it has some how got it caught on sone of the tank furniture?
This seems a little too fast for fin rot doesn't it?

Thanks, Cookie

 

[rossyt99]

My moneys on the Silver Dollars....might be some other explanation, but probably. them

 

[waterdrop]

I've seen silver dollars do some pretty serious fin nipping.

 

[Cookbot]

I might have to nip em with the heel of my shoe if they carry on!