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- From: dphantom@triton.unm.edu (darlene an 92sep02 lawry)
- Subject: Re: Hole In The Head
- Message-ID: <74rq5wb@lynx.unm.edu>
- Date: Tue, 24 Nov 92 03:40:52 GMT
- Organization: University of New Mexico, Albuquerque
- References: <1992Nov23.191358.101085@zeus.calpoly.edu>
- Lines: 48
-
- >Does this look like hole-in-the head or not?
- >
- >If so, how should I treat it?
-
- Well, since there has been so many recent postings regarding hole-in-
- the-head, and I'm tired of e-mailing 3 or 4 different people...
-
- (info taken from the Manual of Fish Health, by Dr. Chris Andrews,
- Adrian Exell, and Dr. Neville Carrington)
-
- Please leave the above credits intact if you reproduce this text.
-
- Hole-in-the-Head:
-
- Caused by: The flagellate protozoan, Hexamita, is usually involved
- (also know as Octomitus).
-
- Obvious symptoms: Small holes appear in the body, especially the
- head region, which gradually develop into tubular eruptions. Very
- often, yellow, cheesy strings of muscus will trail from the lesions,
- leading some aquarists to believe that their fish are suffering
- from a "worm infestation." Affected fish often go off their food and
- develop a hollow-bellied appearance, with pale, stringy faeces.
- Lesions may also develop at the base of the fins and near the lateral
- line. Somewhat similar symptoms occur in a disease known as "head
- and lateral line erosion" (HLLE), which often affects marine fish
- such as surgeonfishes.
-
- Occurence of the disease: Hexamita often exists as a low-level
- infection in the intestines of a variety of coldwater and tropical
- fish, notably affecting cichlids--such as discus, angelfish, and
- oscars--and gouramis. [...] Varoius factors, such as overcrowding,
- low oxygen levels, unhygenic conditions, changes in temperature, and
- poor diet [sorry, no mention of voltages, but it seems that anything
- that induces stress is possible here], may cause the parasites to
- multiply and then develop the acute symptoms described above. [...]
-
- Treatment and control (paraphrased): Best treatment is medicated
- food, but if they aren't eating a tank water additive is necessary.
-
- Furazolidone 50-75mg/kg fish With feed everyday for 7-10 days.
- Dimetridazole 5mg/litre Continuous bath, may need repeating.
- " 40mg/litre short bath for 48 hours.
-
- Of course, commercial treatments are avaiable; if you use one, go by
- the directions on the product. The above will hopefully provide a
- guideline as to what ingrediants to look for.
-
-