Animal Stories - Australian Rainbowfish


Animal-World Information about: Australian Rainbowfish

A school of the peaceful (but very energetic!) Australian Rainbowfish will make a dazzling display in a larger show tank!
Latest Animal Stories
Jim Smith - 2018-01-30
A sad morning. Lost my last Australian Rainbow fish overnight. Hadn't been doing well for the past week or so. Had it for over 15 years, so I should consider both of us lucky. Lost the tank mate over 5 years ago due to a heater malfunction.

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Shai - 2017-04-20
So I purchased 5 Murray Rainbow fish today and the shop owner just gave me 5 at random, said it was too hard to tell the sex. Am I in for trouble? Should I buy the other few he had? Also, I wanted to add some pygmy perch, should they get along ok? I have a 200 Gallon pond if that helps. Could I add 10's of MRF? 50 according to one of the replies...

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annabel - 2009-10-30
Thank you for this info, it is helping me with my project. Thank you! :)

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  • Charlie Roche - 2011-06-23
    You are very welcome.
  • Patricia Israel - 2017-04-10
    Charlie,
    I've read that Australian Rainbow fish can be up to 8 inches long--is that only in the wild?
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Peter - 2016-06-09
My daughter's Rainbow fish just died. Since I have read that their lifespan is between 5-8 years in a well maintained aquarium, I just thought I'd let everyone know that this fish was a minimum of 23 years old, without any doubt. But I do believe he was at least 15 years old, I just don't know that for sure. They're great fish and you'll have them a LONG time!

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vanessa - 2016-03-05
i just put 100g aquarium salt in my tank as i was told my saw shell turtle needs it. I thought it would be ok for the rainbow fish in th tank as they came from the same river.....will the fish die? Im supposed to put another 100g in but after reading this page i see they are not 'brackish' What do i do?

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  • Dan - 2016-03-09
    Most species of freshwater fish can handle some salt in the water. In fact, it is often used to treat various diseases, and can prevent some external parisites. However, there are some species that do not tolerate it well (Neons for example). I don't know about Rainbows. You need a lot of salt to get to the level of brackish. One teaspoon per gallon is often used as a remedy. What ever you do, do NOT use ordinary table salt. You can do one of two things here. Either go to a pet shop and buy aquarium salt or marine salt, or go to your grocery store an buy non-iodized salt. Ordinary table salt contains iodine which will kill your fish. Your local fish store folks (not a big box store) should be able to tell you if your rainbows can handle salt. Good luck!
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AnimalLover - 2016-02-16
I'm getting some rainbow fish soon, and i only can get a 20 gal tank because that is all i can afford. I am going to get around 4 of them? Can someone answer to me before feb 20, 2016. That is when i'm getting them. I need to know if they will be okay with that. Thanks soo much!

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  • veronica - 2016-03-08
    i have a 10 gallon tank and i have 3 Australian rainbow fishes and one cat fish and they are perfectly fine
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Shannon - 2014-10-12
I just bought two rainbows today not knowing they needed a 30 gallon tank. I only have a 1.5 gallon tank will they be okay?

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  • Clarice Brough - 2014-10-13
    There's really very few fish that can be kept in a tank that small. A betta could, or a few guppies, most everything else needs much more water and space. Look at getting a bigger tank for them before you have any problems:)
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danielle - 2014-07-08
Just got 2 australian rainbows today and put them in my 35 gal with 2 dwarf gourami, 3 neon tetra, 3 tiger barbs, and a scissortail rasbora. They are very aggressive towards each other and are biting at the tetras. The one rainbow is obviously a male and I believe the other is a female, I want to keep them but I do not want them to eat my other fish! HELP!

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  • Clarice Brough - 2014-07-22
    These are a great show fish, but they do have special requirements when kept in a community tank. See the 'Social Behaviors' section above and you'll quickly understand why your mix doesn't seem to be working.
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Ryan - 2011-11-24
My turqoise rainbow female just gave birth to a fry, not an egg. WTF?

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  • Charlie Roche - 2011-11-25
    Probably what happened is she laid eggs in the tank somewhere and just too small to notice. They were fertilized and it only takes a week for them to hatch out. So you probably didn't see the eggs and then all of a sudden there is a fry. That is my guess - otherwise, I sure hope you got it on film.
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kye turnbull - 2013-05-15
I think I have a baby one of these, I caught it in the creek by accident when I scooped up some water and when I got home realized! It is tiny! And is hard to see! I kept it to see what it grows into! Please tell me if a good baby food for them is sera micron, it eats it but grows slow!

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  • Clarice Brough - 2013-05-15
    Check out the Live Fish Foods page, for Food for Fish Fry:)
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