Foxface question.

[Qasim]

hello, i have recently noticed once in a while my foxface rabbit fish release some transparent stuff from its body and they tend to like it and my Yellow tand Sailfin tang and the foxface itself run to eat it. Have any one came accross this? If anybody knows what is it called please share your ideas and what does it mean?

Thanks a bunch

 

[eatbreakfast]

Excess slime coat, very nutritious.

 

[Qasim]

Thanks for the quick reply. Thats why they kind fight to get it