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Author Topic: Comparing koi to goldfish?  (Read 3086 times)
Kathy
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Comparing koi to goldfish?
« on: January 04, 2008, 09:57:39 PM »

hello can anybody help me please. can someone list the advantages and disadvantages of koi and goldfish. Approx how much to feed them, sizewise, how attractive, temprement, Lifespan. I originally wanted to get koi but a lady that i know told me that it gets expensive to feed them so i considerded getting goldfish instead. i will be keeping them in a pond that i am going to set up. does goldfish food get expensive? do goldfish get large enough to be seen by people and enjoyed. is it hard to keep koi? is it easier to breed goldfish or koi? which type can you keep more of in a pond? please help me i need propper help before tomorrow possibly cause i've already asked the lady at the pet shop to keep me 2 koi. but i might consider getting goldfish instead. please help. FYI the pond is reasonably sized (5377 L or 1421 gal) i live in South Frica by the way so prop about feezing or anything.
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Wll
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Re: Comparing koi to goldfish?
« Reply #1 on: January 05, 2008, 09:58:39 AM »

Goldfish are an excellent choice for someone starting their first pond. They are much cheaper then koi and will grow just as large. While koi have the longer lifespans that can easily span over 50 years and have been recorded to surpass 200, the simple common and comet goldfishes have respectable lifespan potentials of past 30 years and can grow to nearly two feet long by the time they expire! In a pond the size of yours there's no doubt your fish would grow impressively and live long as long as you took good care of them. Acheiving the truly impressive 12" or larger sizes means dedication and keeping them for many years to come.

Care for the two types of fish is about the same. Goldfish food can be very cheap or rather expensive, depending how important the quality is to you - just shop around and check it out yourself, and keep in mind that while you don't need to get the most expensive brand available, you do get what you pay for in the end. Feeding can get expensive when it comes to a fully stocked pond the size of yours, and if budget is a concern you may want to consider going with some thing smaller in the first place.

For breeding - well, don't worry about this yet. Just get the fish and enjoy them for now. Breeding is a whole thing in its own that you may or may not wish to get into later on.

When it comes to the expense of building a pond or an aquarium, a good book on the fish you plan to keep is always a worthwhile investment - it will go over things you won't get in a simple web posting, and things you hadn't thought of.
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Res
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Re: Comparing koi to goldfish?
« Reply #2 on: January 06, 2008, 10:59:25 PM »

The biggest difference between Koi and Goldfish, is that Koi is a OUTDOOR or POND fish, which GOLDFISH is primarily for indoors, specially the ornamental ones.

Apart from the above, there are notable differences between the way koi and goldfish tend to eat. Koi and goldfish eat a lot, but goldfish are better foragers. If you took two identical tanks and you neglected to feed both equally, the population in the koi tank would die out faster than the population in the goldfish. Part of the reason is that koi eat more, so they starve faster. Part of the reason is that goldfish will find food anywhere, including swimming prey like rotifers, fish fry, and insect larva.

If you have a pond, go for Koi, if not, go for Goldfish. Simple !
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Izzy
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Re: Comparing koi to goldfish?
« Reply #3 on: October 15, 2008, 04:58:06 PM »

I think both are great but koi is usually more expensive, try getting some books on each of them and comparing them.
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Nana
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Re: Comparing koi to goldfish?
« Reply #4 on: August 09, 2009, 10:14:33 AM »

I was told not to put Koi and goldfish together.  They would breed and we would end up with sterile ugly fish. I have some some Koi as well as some really pretty butterfly goldfish.  I am confused. 
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Nana
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Re: Comparing koi to goldfish?
« Reply #5 on: August 09, 2009, 10:20:24 AM »

Forgot to mention...we have a 35,000 gallon outdoor pond.  It has UV filter, skimmer, water fall and lots of plants, rocks etc...
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Raul
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Re: Comparing koi to goldfish?
« Reply #6 on: August 10, 2009, 04:24:25 AM »

Yes, goldfish and koi can breed together , but their offspring will be sterile. Some people like to keep them both together in the pond because it makes the pond a little more interesting to look at. If you don't like the way their offspring look , they could always be removed. It all just a matter of preference.
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goldfishcn
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Re: Comparing koi to goldfish?
« Reply #7 on: September 10, 2009, 10:00:41 PM »

I think both are nice,  usuall good koi is more expensive than goldfish
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Mindemae
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Re: Comparing koi to goldfish?
« Reply #8 on: January 16, 2010, 10:00:46 AM »

The slim bodied, fast swimming goldfish with single caudal tail are most compatable to Koi.  Just remember that in a large pond such as yours, the bigger fish might eat the smaller ones.  If you decided to go with both goldfish and koi, try and get them both about the same size.
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