apart from minnows, leopards and paradise fish, does anyone know of any other coldwater fish around?

:dunno:

I think that's about it as they are all banned in NZ.

Natives

You can acclimatize Golden Barbs, Guppies, Bronze and peppered corys. all to live in cold water.

I have had all of these in cold water and they were fine.

Cold water up North will surely be different to cold water down in the South. I have been meaning to try acclimatize some barbs but I have a feeling they wouldn't survive in my cold water.

I have kept a number of different fish outside in a pond but only over summer.

Cold water up North will surely be different to cold water down in the South. I have been meaning to try acclimatize some barbs but I have a feeling they wouldn't survive in my cold water.

Yeah, I've had pearl gouramis, tetras, cories, bristlenoses, plecos, SA cichlids etc all living at 16° or cooler for a few weeks with no harm. They can all handle relatively cool for a while if cooled off slowly. But I wouldn't call it a good idea especially for a long time and outside over winter is likely to get much colder than that.

axolotls are cold water and fun to watch

Checked the temp in my little pond after it being nice and sunny all day yesterday, 9°. Brrr.

I thought the only coldwater fish were goldfish and minnows and wild guppies....

This is the opposite to what you're talking about, but I had my goldfish (fantail) in my tank set on 25C for weeks and weeks and he/she seemed perfectly happy... just moved it out into the pond the other day and now it hardly swims around... spends most of the time inside the barrel ornament. I feel bad now.. am feeling like moving it back into the tank. But my tank is only a 64L. My minnows that I moved into my smaller tank are also not swimming around that much... poor fishies

Guppies are NOT coldwater. They are tropical.

We've had this conversation before Ira. They are wild guppies I'm talking about that Animates sell as Coldwater guppies as they are aclimatized to live in cold water.

http://www.fancyguppies.co.uk/page79.htm

We've had this conversation before Ira. They are wild guppies I'm talking about that Animates sell as Coldwater guppies as they are aclimatized to live in cold water.

They are still standard guppies and wont cope below 18-20C..

Although Guppies will survive in cooler temps I have noticed they are very slow growing and as pointed out in reality they are tropical. Weather loaches 22Degrees? Hillstream loach 23? Bluefin Killyfish 20? Barredtail pearlfish21? Blackfin pearl Killyfish 20?

Weather loaches are banned in NZ Jim

Had cory's survive entire winter in pond which was frozen over for quite long periods.

anyone think of axolotls (mexican walking fish)?

Im pretty sure that axoltyls are amphibians not fish.

i have been told myers loaches like the cooler water??

they would go well with my minnows and lepoards :thup:

i've kept golden and brown algae eaters in cold water and had them grow from 3-4cm to 12cm in under a year.

you should really look into nz native fish. they need very cold water. in auckland it's extremely difficult to keep the water cold enough for them during summer....

but there is a big selection and all nz natives are beautiful and fascinating fish! not only that but they are free to take from the wild (most of them)

as always, do some research if you do decide on nz natives. search stella's posts.

danios are alright.

borneo suckers are also sweet in cold water. weird fish too :thup:

danios are alright.

borneo suckers are also sweet in cold water. weird fish too :thup:

You beat me to it while I looked for some info about them :rotf:

http://www.livefish.com.au/tropicals/catfish/borneo-sucker-3cm.html

On 10/20/2011 at 2:23 PM, Ira said:

Guppies are NOT coldwater. They are tropical.

Can survive in non heated tanks also, had one thrive and survive in my tank which is yet to be drained, heater is off, kept escaping net, still been feeding it though, has been 3 weeks now. 

The trouble is your definition of cold. Sure they can survive in cooler water but prefer it warmer. A "coldwater" tank in a modern, insulated house will be a lot warmer than a "coldwater" tank in an uninsulated house, or outdoors.