Fin abrasion on clown

[deangelr]

Hello all....

Well recently one of my clownfish had what appeared to be fungus on his tailfin... He had been struggling to eat, looked bad.... Then he ate a Lot and the fin abrasion went away....Now the female has some
fin abraisians little bites or missing pieces of fin from
her pectoral fins.. Looks bad....Any ideas...?

 

[youpey]

it could be a fungus, do you have pics...and more importantly a quarantine tank?