I noticed that there is this little speck on my clownfish it might be a hole but it was there when it came through the mail it has had breathing problems but when I pointed the wave maker up the next day he’s not breathing heavily anymore if anyone can tell me if my clown fish is sick or not this whole morning he has been swimming constantly in that same corner also I think he has claimed a cave that’s in this tank idk why he’s in the corner now