Help ID this fish problem

[FISHnChix]

Ok so I need some help reefers. A few weeks ago I bought a yellow eyed kole tang .about 2 days later it broke out with what looks like ich.. I couldnt catch him to treat so I did the best I could do and fed heavily and ran a UV.. tang seemed to be doing way better had no white spots , eating great, and swiming around acting normal. Fast forward a couple weeks and I find him dead overnight with a little gash in his side.. was pretty bummed but didnt think anything about it.. then last night I saw my royal gramma still alive but had the same cut on his side!!!

 

Any ideas on what it could be??  Maybe n@Humblefish could chime in too😁

 

Thanks guys!

[Humblefish]

Assuming there are no critters (e.g. rogue crab) doing this...

 

Could be a secondary bacterial infection: https://www.nano-reef.com/forums/topic/407685-bacterial-infections/

 

Or possibly even Uronema: https://www.nano-reef.com/forums/topic/402464-uronema-fish-disease-information/

[FISHnChix]

1 hour ago, Humblefish said:

Assuming there are no critters (e.g. rogue crab) doing this...

 

Could be a secondary bacterial infection: https://www.nano-reef.com/forums/topic/407685-bacterial-infections/

 

Or possibly even Uronema: https://www.nano-reef.com/forums/topic/402464-uronema-fish-disease-information/

Thanks I will check those out... and I am keeping an eye out for some rogue crab

[A.m.P]

Neried or other eunice-worm maybe? Parasitic isopods? 

[FISHnChix]

10 minutes ago, Amphrites said:

Neried or other eunice-worm maybe? Parasitic isopods? 

More stuff I havent heard of 🤣.. looks like I have some research to do.. thanks for the ideas!