lateral line erosion?

[sbuse]

i don't know what they were fed before i got them, i just heard they were in this other persons tank for a long time then they gave them to my friends pet store. i'll be feeding them high quality foods though.

 

[sbuse]

update

the angel died and became tiger shovelnose poo. the tang is doing well and regrowing its fins along with the raw spots reducing in size.

 

[Otherone]

Sorry for the lose but happy to hear the Tang is bouncing back - odds are the raw spots were burns if no scarring was present. Keep feeding that Sea Deer Nori to build up it's immune system, the thiamine (b1) contained in vegatation will be key.