Question
goldfish ulcer?
Hello,
I am on vacation and my roommate called to tell me that one o 4 of my goldfish died tonight. He was a pearscale, about 3 " long. I'd had him for a year and he was a very healthy and resilient fish. The only symptom he noticed was that the goldfish was floating upsidedown this morning, and when he saw that it had died tonight, he noticed a huge raw hole in it's stomach. I've attached a picture. Since I'm not there, I don't have too much information on the ammonia levels of the water, but my roommate says the fish was acting normal, eating, up until it died. The only thing he noticed this morning was the floating upside down (he poked the fish and it righted itself) and a slight indentation where the hole appeared later tonight. I want to try and get diagnosis so that I can appropriately treat the tank to minimize the risk for the rest of my fish.
What do you think killed my fish?
Thank you,
Jessica
AnswerDear Jes,
Bacterial infection within gold fish shows itself as one of the following normally ... reddish lesions in the fish's body or fins, swollen eyes, red mouths, red stomach region, unknown death reasons. The result of bacterial infection in gold fish is normally septic wounds such as ulcers.
Antibiotics find a place in the treatment of gold fish but this is best done under close and expert supervision bearing in mind that bio filter operation will be severely compromised. It is often best to treat the gold fish in a separate bath rather than in the fish tank itself ... in hospital as it were.
Bacterial infection often results from initial infections by parasites of various kinds such as anchor worms and also poor pond water quality in general which in turn creates further opportunity for parasite growth. This should emphasize the absolute importance of good pond bio filtration accompanied by regular cleaning of bio filter media along with the avoidance of bacteria traps such as the sand in sand filters. Always remember the critical importance of aeration in well cared for gold fish tanks.
Anything that causes stress in a fish pond environment such as high ammonia levels, chemical contamination, low oxygen conditions contribute to the possibility of a goldfish becoming infected.
Fish scraping along roughened surfaces also lead to damage to the outer scales and mucous lining that allow bacteria to get a foothold.
Bacterial infection in gold fish tanks can be avoided to a great extent by using modern products such as Koizyme (previously Lymnozyme) also called Genesyz in the UK. The process of competitive exclusion ensures that Aeromonas and Pseudomonas in particular are starved out of existence rendering the gold fish safe from attack.
Ulcers which are an indication of advanced bacterial attack can be caused by damage to the skin from parasites or exposure to high levels of ammonia or nitrite and/or high or low pH ... bad water quality. Under these circumstances bacteria thrive and the induced stress levels make the gold fish to infection.
Treatment of ulcer disease includes the use of antibiotics.
If a single gold fish is affected then that individual may have a specific problem. In the case where numerous gold fish have the disease then there must be underlying problem within the tank.
It is very difficult to treat fish with advanced bacterial infection so early diagnosis is essential to stand a good chance of curing the infected goldfish.
Aeromonas may be present in tank and only becomes a problem when for whatever reason the conditions within a pond are ripe for attack. Early spring when water conditions are changing is a time when fish are prone to infection because they are coming out of a period of dormancy and are somewhat weakened as a result.
Methods of treating bacterial bacterial disease include:
Swabbing the infected area.
Dipping in a chemically treated bath of water for a period of about 5 minutes.
A more prolonged bath in an outside container for say 30 minutes.
Applying medicines to the whole pond bearing in mind the probable impact upon the pond filter
Applying a medicated food.
By injection of antibiotics
* For further detail email or contact me *
parthanetra@yahoo.com or parthanetra@gmail.com, Cell. No. +91 9434146179 or 00919434146179
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