So I got a small what I presume male clownfish from the Lfs last week after my female died. He seemed fine when I got him but a couple days later I noticed that his gills seemed to be flared and he was breathing somewhat rapidly. I also have another clownfish and a clown goby and they are both just fine. On top of his rapid breathing and flared gills he has been resting on the sand a lot. He also we sometimes just chill vertically near the corner and doesn’t swim around as much as the other clown. He has a good appetite however. Lastly today I noticed he is losing a lot of color near his tail and his fins and is looking somewhat pale. Could this be Brook? Water params are all good and coral is looking great. If this is Brook how should I go about this as having a qt just isn’t possible for me so I won’t be able to isolate him.