Clowns with dark/black dots

[slobodan]

I was away for 4 days, and when I got back, I noticed dark (black) dots on both of my clowns.

I tried recording a video under white light, but it's hard to get a good one, so here are 3 not great ones:

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They are eating and acting ok so far.

Things that I did wrong recently:
- I had a PO4 spike (~0.60, brought to 0.12 now) because I have had a bit busier period
- I added a tank-bred mandarin fish and a few corals from my 10-gallon coral quarantine tank. I had some corals in that 10g tank for a few weeks, then I added a mandarin fish (I know, a bad idea), and after ~5 weeks, I transferred them to the display tank.
- I added some snails directly to the display tank a week ago.

The additional problem is that I am traveling the day after tomorrow and will be away for 7-8 days.

Can you help me identify the disease? What are my options?

Thanks as always!

 

[vetteguy53081]

I was away for 4 days, and when I got back, I noticed dark (black) dots on both of my clowns.

I tried recording a video under white light, but it's hard to get a good one, so here are 3 not great ones:

-
-
-

They are eating and acting ok so far.

Things that I did wrong recently:
- I had a PO4 spike (~0.60, brought to 0.12 now) because I have had a bit busier period
- I added a tank-bred mandarin fish and a few corals from my 10-gallon coral quarantine tank. I had some corals in that 10g tank for a few weeks, then I added a mandarin fish (I know, a bad idea), and after ~5 weeks, I transferred them to the display tank.
- I added some snails directly to the display tank a week ago.

The additional problem is that I am traveling the day after tomorrow and will be away for 7-8 days.

Can you help me identify the disease? What are my options?

Thanks as always!

On top of other clown being aggressive, looks like pigment marks from hyper-melanization often due to coral or anemone stings which will go away on their own

 

[slobodan]

Thanks! I do not have anemones, but I have many corals that could probably cause stings. Should I do anything? For the aggression, one clown has been doing that to the other from the beginning (10 months ago). They are not aggressive towards other fish (or at least I never saw the aggression).

 

[vetteguy53081]

Thanks! I do not have anemones, but I have many corals that could probably cause stings. Should I do anything? For the aggression, one clown has been doing that to the other from the beginning (10 months ago). They are not aggressive towards other fish (or at least I never saw the aggression).

Isolation with acclimation box or placing in sump works but not 100% for aggression