Coral fish disease (Oodinium ocellatum)

Symptoms

Dust-like spots all over fish
Body and fins are covered with dust-like very small spots. Fish looks as if it is covered in pepper.
Fins folded
The fins of the fish remain in a closed position due to discomfort.
Corneal opacity
Cornea of eye becomes totally opaque.
Respiration rapid
Fish is breathing very fast, much faster than is normal.
Rubbing/scratching
Fish constantly rubs or scratches itself against any object available.
Small dust-like white spots
The fins are covered with very small dust-like white spots.
Abnormal swimming - streaks
Fish swims in short bursts, then stops.
Listless and lethargic
Fish moves very lazily in water, much less than normal, lacks interest.
Reluctant to feed
Fish comes to eat but with evident lack of appetite.
Salinity full salt water
Normal full salinity salt water.

Causes

Unicellular Dinoflagellate parasite. Not to be confused with Freshwater Oodinium or "Velvet".

Prognosis

Invariably fatal if not caught VERY EARLY. Highly contagious, can wipe out complete stock if not checked quickly.

Treatment

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Prevention

To treat fish with copper, is the surest way to kill the parasites, but a VERY good test kit must be used, and it is essential to understand that in the beginning the free copper ions will bind with all kinds of matter in the Aquarium. Especially with live rocks and more, as well as the glass. It is most preferable to treat fish in a bare quarantine tank, and monitor for the first few days the level of copper in the tank, both before each new treatment, and after treatment, both 10 minutes later as well as an hour later to see if the copper level is where it should be (.25ppm) or if it has fallen away, and needs a 'top up'. Under no circumstances use copper in a tank with Invertebrates, as is invariably fatal to them even at low levels, as well as to algae on live rock.

Pictures

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Videos

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