problems with aros - fins and barbells

[new2natives]

my new 14" silver's barbells have looked a little banged up lately, i was jsut wondering if thats common, or what it means?

also in an unrelated incident, i noticed my 7" silver's back fin on the bottom is tattered ... not bad, but there are portions where its like the fin is seperated about 1/2 the way up to the body, and i havent noticed that on him before...
is that because of stress, or from other fish harassing him?

i have never noticed any aggression from my other fish toward either aro ...

 

[jay17]

one the first silver, could you post some pics? so we could diagnose it better.. and as for the second one, pics also.. but i think it is just being harassed by its tankmates.. what are its tankmates?

 

[new2natives]

it turns out the smaller silver was being antagonized ... by my TSN, apparently at night.

today i wake up to find a rather large bump in the TSN's belly ....

RIP "sharkbait"

 

[Joergemathew]

PICS WOULD HELP MORE IN SOLVING YOUR PROBELM