Weird white crust patch on boxfish

[Jenaellyn]

Hi 

I recently bought a boxfish and it developed ich. 

I've since chloroquined it and the ich seems to have gone but he has developed this odd looking round white crust on the top of his body. 

Any idea what it is? 

Cheers,

Jen

<a href="http://s1052.photobucket.com/user/jenaelaashkevron/media/Mobile%20Uploads/8a296053-9463-4717-89d5-259af316e365_zpspha1agiq.jpg.html" target="_blank"><img src="http://i1052.photobucket.com/albums/s454/jenaelaashkevron/Mobile%20Uploads/8a296053-9463-4717-89d5-259af316e365_zpspha1agiq.jpg" border="0" alt=" photo 8a296053-9463-4717-89d5-259af316e365_zpspha1agiq.jpg"/></a>

 

[Jenaellyn]

http://i1052.photobucket.com/albums/s454/jenaelaashkevron/Mobile Uploads/8a296053-9463-4717-89d5-259af316e365_zpspha1agiq.jpg

[Jenaellyn]

sorry i dont know how to insert images

[Rainmakersg]

Click on "choose files" in blue at the bottom left of your input box.  Then choose the file you want to insert.

[Rainmakersg]

Inserted for you.

[Jenaellyn]

Thanks!