Whats wrong?

[bolob123]

I have a tank with 2 bass and 1 clown knife
I went on vacation for a week , before I left I did 50% wc . When I got back I saw something had happend to one of my bass , all the fish act normal and eat well. I tested the water with api freshwater test kit before doing 50% wc
Amonia - 0
Nitrite- 0
Nitrate- 20ppm

 

[Anderman]

Looks like the clown knife attacked it or the other pbass put the chase on it. It has a chimple from crashing into the glass which was probably when it was running scared and wounds on the sides from bites or hitting the ornaments.

 

[Bennlfer]

Agreed with Blkpiranha. My bass always get those abrasions on them from fighting

 

[haynchinook334]

Agreed. Also could of scraped them selfs on that drift wood.

 

[mofofish]

agreed as well, fighting and scraping is the cause

 

[bolob123]

Thanks for the answers