brook?

I have a small clownfish in my 55 gal reef and he has some blotchy white patches on his body. Hoping it’s not Brook but can someone please tell me? There are 3 other clowns in the tank as well and 1 shows some slight aggression to him. Could it just be aggression? Pics below

Wassup Reefers, Need some help with a disease ID. I got a citron clown goby for my 40cube a few weeks ago. A handful of days after I introduced him to the reef appetite and behavior seemed normal but I noticed a few white specks on just his fins. The next day his fins were clean/clear of specks...