Tail Nipping

[Don Trinko]

I bought 6 skunk cats for a 75g tank that I will put Discus in eventualy. I found today that 5 out of the 6 have had their tails nipped! Only one had no nipping so.... I'm presuming it is the guilty one and have isolated it for a while. Other than isolating the guilty party is there anything I can do to prevent this. I have had other fish nip fins before but this is the 1st time I have had a cori do it.
Don T.

 

[Don Trinko]

It is only the bottom of the tail. Is it possible they are dragging their tail and wearing it away? Don T.

 

[dwarfgourami]

I would have thought it is much more likely that they got the tails some other way- most likely finrot. Corys don't really have that much in the way of fin-nipping equipment. Are there sharp bits in your substrate? What is your gravel vac routine? Water stats?

 

[Don Trinko]

There is no indication of fin rot and one has iregular chunks out of the tail. I have not actualy seen the fin nipping. I am baffelled. I have never had cori's nip anything before. I did put some stress coat in to help the healing. Don T.

 

[NEONCORY]

How long do you have them?
I am with dwarfgourami that I am very doubtful that other cory or any cory would nip anybody's tail or fins.

I suspect the store you bought from might kept those cory in the tank with some fin-nipper like tiger barb or something. The store tend to keep some other fish with the corys since corys are bottom fish.

 

[Don Trinko]

I have had them 2 weeks. They were in a take with other cori's and nothing else. I agree, I have never had cori's nip tails before. Don T.