What are these white spots?

[Hannahmunt]

I’ve had my green chromis a couple of days, all been fine. But today I noticed all of them have these small white spots on their fins and tails…

I'm not to sure what this is?

have attached pictures.

 

[threebuoys]

Do you see any spots on the body?

On the fins could be lymphosystis or perhaps the beginning of Crypto.

If lympho, you may want to observe another day or so before treating as it can clear up on its own. Crypto is of course a serious issue.

Current Quarantine Protocol

2023 Quarantine Procedures Jay Hemdal David Scarborough Protozoans (Cryptocaryon/ich, Amyloodinium/velvet) and Metazoan trematodes/flukes are by far the most common parasites found on newly acquired fish. A carefully managed quarantine process can effectively eliminate these parasites before...

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Aquarium Fish Disease Problem Solving Determining the best course of action for a problem with your aquarium can be a difficult task. Even advanced aquarists will often need to seek the help of others for complicated or unique issues. Our intent here on Reef 2 Reef is to offer expert advice...

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[ReefDude716]

I’ve had my green chromis a couple of days, all been fine. But today I noticed all of them have these small white spots on their fins and tails…

I'm not to sure what this is?

have attached pictures.

Looks like ich

 

[ReefDude716]

Looks like ich

Hard to tell with those pictures

 

[vetteguy53081]

With the size of nodules and location, appears to be Lymphcystis which is viral rather than parasitical. Lympho (for short) is often caused by poor water quality and /or diet. This can be your water or water from store where you made purchase.
If youre using API test kits, you may be getting false readings which in turn , your water is not as clean as test kits are indicating.
For diet, many stores sell the fish with recommendations of flakes and pellets. They need more than that such as :
Spirulina brine shrimp
mysis shrimp
LRS fish frenzy
hikari marine cuisine

Also add selcon vitamins occasionally to their foods for overall health as this fish is susceptible to uronema

 

[Rmckoy]

Only having them for a few days and noticing all of a sudden spots points to ich
Most lfs maintain low salinity to keep parasites off , but once introduced to proper salinity ( 1.026 ) parasites can surface especially if they skipped a quarantine before introduction to the display tank .

Search disease forums for more information

Or if someone else can tag jay .
@vetteguy53081 could also provide his opinion and treatment

 

[MnFish1]

1. It looks like lymphocystis - especially if there are no other symptoms (itching, rapid breathing, etc)
2. One of the risk factors for lymphocystis is stress from acclimation - shipping, temperature, salinity, water quality etc.
3. Did you happen to QT/Treat the fish (or were they previously)
4. Any other fish with symptoms?

One issue - is that the same risks for lymphocystis mentioned above are the risks for other diseases like cryptokaryon/velvet, etc etc - so I would carefully watch as others have suggested - that something else doesn't develop over the next couple days.