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Bonster Bonster
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  • Posted on: 30/7/2009 12:00
Koi have been attacking up the Fancy Goldfish! #1
Hi Everyone,

Really need some help with my fancy goldfish fish.

I have a pond that is 1500 gallons and has been fine and all of the fish are happy and healthy.

Mixture of fish Koi, Tench, Mirror carp, Gold Fish, 3 fancies and a Sturgeon all getting on well, that was until I went out this morning!

One of the fancies has gone (so have to presume eaten) and the other 2 have had the tails munched off. Saw one Koi grab tail of fancy and shake the hell out of the fish, horrible to see.

Have rescued the fish and put them in my inside tank but not too sure what to treat them with and the rest of their body is fine and undamaged?

Please Please Help as i don't want them to be getting any diseases.

Look forward to your responses
TetraLinz TetraLinz
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  • Posted on: 30/7/2009 12:49
Re: Koi have been attacking up the Fancy Goldfish! #2
Hi

What an horrendous experience for you Unfortunately though, it's not to be totally unexpected. Fancies are really best kept with other fancies in water that's teperature controlled as they can't take the cold British winter and are easily out-competed by the faster, more agile common goldfish and Koi.

It's for precisely this reason that we normally suggest the keeper keeps fancies in large aquaria over 30gal and with enough filtration for double the tank capacity.

Treat the fish's fins with a course of Melafix to keep out secondary infection and to promote healing. The fins will regrow.
T.L
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Bonster Bonster
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  • Posted on: 30/7/2009 13:45
Re: Koi have been attacking up the Fancy Goldfish! #3
Thanks so much for the reply.

I have actually just found the 3rd missing fancy happily swimming with the largest of my koi. I have pulled him out though just in case they start on him - eek!

Melafix it is then I will get some today.

I would like to see if i could get them back into the pond but in some kind of breeding net that is big and they still get the water flow - any suggestions on this?

I have had fancies in the pond before which have grown massive and they have never been bothered at all so it has shocked me that it has happened.

Thanks so much for the advice but will await answer about the breeding nets
Otter Otter
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  • Posted on: 30/7/2009 15:31
Re: Koi have been attacking up the Fancy Goldfish! #4
If you've kept fancies outdoors over the winter before, you probably know what you're doing. They're more delicate than the fish-shaped goldfish, and all they can do when a heron comes calling is wallow around like hors d'oeuvres with fins. But if the other fish can't get to the fancies, they can't hurt them or steal their food.
fredrick_more fredrick_more
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  • Posted on: 31/7/2009 12:59
Re: Koi have been attacking up the Fancy Goldfish! #5
Hey,

When you say fancy goldfish are they the ones with round bodys and then have double tails or the longer slimmer goldfish with just a long tail? As some people call both by the same name.
Bonster Bonster
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  • Posted on: 31/7/2009 15:12
Re: Koi have been attacking up the Fancy Goldfish! #6
Hi,

They are then ones with a really round fat body like little old men!
Bonster Bonster
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  • Posted on: 1/8/2009 12:46
Re: Koi have been attacking up the Fancy Goldfish! #7
Right i am now on my second day of the Melafix treatment but the water has gone completely cloudy, can hardly see the fish in the tank - is this ok or am i doing something wrong?

Any answer would be helpful
Anna Robinson Anna Robinson
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  • Posted on: 1/8/2009 22:14
Re: Koi have been attacking up the Fancy Goldfish! #8
Melafix doesn't normally make the water cloudy. Was the tank already up and running with a mature filter when you put the fish in? If not, then the cloudiness may well be ammonia, which is bad news.

You probably know about this, but there's a pinned thread about it here:
http://www.fishkeeping.co.uk/modules/ ... php?topic_id=559&forum=14

A water test will obviously tell you for sure.
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Bonster Bonster
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  • Posted on: 2/8/2009 19:40
Re: Koi have been attacking up the Fancy Goldfish! #9
God this is a nighmare!

All seems fine and i can not see any traces of ammonia so very confused, have completed a water change though just incase.

All seem ok and happy, eating fine but the smell from the water is horrible, i noticed it as soon as i lift the lid to feed them - what could this be?

Need all help i can get at the minute
fredrick_more fredrick_more
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  • Posted on: 2/8/2009 20:17
Re: Koi have been attacking up the Fancy Goldfish! #10
Did you test for Nitrite?

Is it a eggy smell? If so then do an 50% water change, idealy using a gravel cleaner to clean the gravel.