smileychopuk smileychopuk
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  • Posted on: 22/5/2013 22:35
Gold Fish Dieing 1 a week sometimes 1 a day #1
Help Please..

My dad loves his pond....but we have had problems for 8 months and he is in hospital having a knee spacer put in...so he cannot deal with this.

Ive had some advise, some say they think the heron is attacking the fish.

So please please make replies in simple form, I know nothing about gold fish apart from they have a head and tail..

About 8 months ago, we introduced approx 30 gold fish into an established pond...The pond has been there for 20 years with no problems, the gold fish started dieing within a month, and then it was 1 a week..they all had spots nearly on top of there head as though something was eating them, then goldfish started to die with no marks on them...then it killed my dads old carp..we called jaws that he had for 25 years...all passes all pond tests, and has been treated for parasites...It seemed to kill the goldfish them move to the larger fish

Do you think the pond is a gonna..

and its better to reline the fishpond, take all stones and chuck them and all plants..

Get rid of all the fish and buy a new filter and start again..

I want to do this quick as he loves his pond and want him to have something to come home to not never ending dieing fish
Fishlady Fishlady
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  • Posted on: 22/5/2013 23:28
Re: Gold Fish Dieing 1 a week sometimes 1 a day #2
Hi and welcome,

How did you do your tests and what are the actual results for ammonia, nitrite and nitrate?

The thing is that the filter works by building a colony of bacteria that actually process fish waste into a safer form. If you suddenly added 30 goldfish at one go, they would produce far more waste than the filter could cope with and overload it.

The toxins from the fish waste rapidly overwhelm the fishes' immune systems causing them to be susceptible to all kinds of disease and infection as well as causing breathing difficulties. The marks on their heads may be an infection called hexamita or a simpler fungal or bacterial infection, all of which which can be problems brought on by poor conditions.

A heron would have taken and eaten fish, not just pecked at them.

If you could post back with test results for ammonia, nitrite, nitrite and pH (from a good liquid based test kit rather than strips) that will confirm whether this is the problem, but it is really the most likely cause.
smileychopuk smileychopuk
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  • Posted on: 22/5/2013 23:55
Re: Gold Fish Dieing 1 a week sometimes 1 a day #3
Thankyou for your reply, were you able to see my images...a little new to this..

I will pull the testing kit out tomorrow....thats what the fish shop advised after the fish started dieing, so we ran the pond tests.

will log them on here tomorrow night..

its just that as you can see from the picture it looks like something is eating the fish and its nearly always near the mouth or top of the head and they can measure an inch in size
smileychopuk smileychopuk
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  • Posted on: 22/5/2013 23:59
Re: Gold Fish Dieing 1 a week sometimes 1 a day #4
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smileychopuk smileychopuk
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Re: Gold Fish Dieing 1 a week sometimes 1 a day #5
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smileychopuk smileychopuk
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Re: Gold Fish Dieing 1 a week sometimes 1 a day #6
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smileychopuk smileychopuk
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Re: Gold Fish Dieing 1 a week sometimes 1 a day #7
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Fishlady Fishlady
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  • Posted on: 23/5/2013 7:19
Re: Gold Fish Dieing 1 a week sometimes 1 a day #8
Hi

Those pictures look to me to be very clearly "hole in the head disease" caused by hexamita parasite infection. Most carp-like fish carry this protozoon in their guts harmlessly, but when in situations which stress the immune system, particularly poor water quality, overcrowding, depleted oxygen and malnutrition the infection takes hold and the parasites migrate to the skin where they cause the kind of symptoms you're seeing. There's an article on the disease here, and these images show goldfish with active infections at various stages, some of which, as you can see, look very similar to yours.

Treatment at this stage is first of all to deal with any water quality or nutritional issues and then medication. As the infection appears to be severe you will need to treat with metronidazole which is prescription only in the UK and will need to be purchased from a vet.

How big is the pond and how many fish are still alive? What do you feed them?