Animal Stories - Boeseman's Rainbowfish

Animal-World Information about: Boeseman's Rainbowfish

The Boeseman’s Rainbowfish and has become a sensation due to its almost unreal coloration!
Latest Animal Stories
caitlin - 2017-07-08
ok i just bought my rainbow at petco a month ago and its colors changed right away. hes very vibrant, and keeps wanting to breed with my long fin rosy barb female. Is it possible for them to crossbreed?

Alicia - 2016-06-01
I went to the petstore for 7 Australian Rainbows. By the looks of it though, I received 1 Turquoise, 2 red , 1 emerald and 3 Australian rainbows. I want to know if they will be ok? I know they love schools and I want to keep them happy , I am worried because they are, by the looks of it 4 females and 3 males ... I don't want them to interbreed by accident. Should I take my pretties back that I got by mistake or add more or does it not matter what color they are? I am fairly now at this and want to make sure I do it RIGHT. Thank you .

Anonymous - 2015-11-12
i thought i would get two schools, tourquios and Boeseman's Rainbowfish. I was thinking 5 each with 3males/2females for a total of 6males/4females. Would this be bad? According to your suggestion, it looks like I should get 6 each with 3males/3females for a total of 6males/6females (12 fish). my tank is 120 gallons, 60'x18'x26'. I will be using a sunsun 304b for filtration (carbon, pads, balls, ceramic beads). I will be getting artificial plants. Do you know a good place to buy artificial plant kits for rainbows?

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  • Clarice Brough - 2015-11-16
    That is exciting! I've been thinking of setting up a 125 gallon with two schools too. I don't know where to get 'kits' of artificial plants, but there are lots of artificials available, both silk and plastic. Good luck on your arrangement, and I look forward to hearing about your experience.
  • Paula Luedke Pennington - 2016-03-31
    Usually it is suggested to get more females than males, but that might be primarily with live-bearers.  I haven't had experience myself with the rainbows, other than seeing them in a small spot in Walmart!!  I had them in my pt store years ago, but that has been a long time!!  I am a bit rusty!  Go to and see if these people can be of help! You might look on for the plants.  I have had silk, but found they kind of fall apart, leaving strings here and there!
Judy - 2016-02-28
I have 2 rainbow boesmaniis, a male and female in a 100 gallon tank along with several other fish,Angel fish ,leopard cat fish, clown loaches, neon tetras,bronze and pepper cory. Also Large albino plecco My problem is that my female boesmani has not been able to close its mouth and therefore cannot feed. Any suggestions as to what could be wrong with it. Judy

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  • Paula Luedke Pennington - 2016-03-31
    I am wondering if there is an injury or a little fungus.  Have you treated the tank with anything?  Go to  It should get you to mouth problems.

    That site is all about rainbows!
SATISH SALVE - 2014-10-11
hi superb website I have brought boesemani rainbow yesterday they were kept in a tank which did not had plantations. I have plantations in my tank how much time will it take to form it's original color now. please help just tense.

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  • SATISH SALVE - 2014-10-11
    thanks david Just crossing my fingers do i need to increase my plantations or any particular food. also is white light ok for the plantations and boesemani rainbow.
  • David Brough - 2014-10-11
    It shouldn't take more than a day or two I would think.
  • David Brough - 2014-10-12
    Id think that more plants are better, but keep a portion of the aquarium for swimming. Live foods or freeze dried protein food like shrimp would help. The idea is to make them feel very comfortable and happy to develop the full colors. Beautiful fish!
  • Clarice Brough - 2014-10-12
    Boeseman's Rainbowfish are one of the most dynamic color changing fish. They change color with mood and will display the best colors while spawning. Young fish and females will be always be the least colorful, while an adult male, about 4.5 "(14 cm), will show the most color. The best ways to bring out their coloring is with a well planted aquarium that's kept maintained (frequent water changes) and given a varied diet that contains live food plenty of live food, like brine shrimp and insect larvae. Lighting can be used to highlight their coloring, some aquarists even use spotlights.
JD - 2015-10-22
A little help.... I had one make one female boesemani in a 60 gal tank with 4 long finned zebras and a red fire dwarf gourami. Just picked up 3 juvenile 'boesemanis' from LPS... New to rainbows and may be wrong but they sure look like turquoise rainbows to me..... They are considerably smaller than my current pair but no yellow to them at all.... Very BLUE. Are the juveniles blue??

Kirsten - 2013-12-02
I just purchased a pair of Boesemanis (1.5-2') in size. I know it is harder to sex them at a younger age, but I am rather confused whether I have one or both males. One typically stays pretty brilliantly colored, head darkens considerably and stripes along his side are frequently dark. However the smaller one, who initially looked pretty pale like a female in the sale tank, occasionally darkens and looks just as brilliantly colored as the larger one. Is it likely that I have both males? They both exhibit the orange rear half of the body. The slightly larger one has only a minutely deeper look to his chest and no arched back yet. Any help? I can't find good pics of female bosemani's to compare.

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  • Clarice Brough - 2013-12-10
    They are still much too young to sex with any accuracy. Along with color, tan arch developing may be your best determinator as they age.
satish - 2012-03-31
I have a tank of 30 inch planted which houses 16 bosemans rainbow, it's a delight to watch them, especially when they change colors from noon time.
Happy fish keeping.

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  • Joe Yo - 2012-04-16
    that is wayyy too small consider upgrading
  • Jeremy Roche - 2012-04-17
    For 16 full grown you need a much bigger tank. 75 gallon tank would work well.
Mandi - 2010-05-03
I must have found a great fish seller, since not only was the boeseman rainbow I bought gorgeously coloured, so were the other rainbow fish I bought! But in any case, this one is a wonderful addition to my rainbow tank. :)

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  • Charlie Roche - 2012-02-12
    I am glad you found a good supplier cuz it is hard to find some reliable fish people that actually are willing to spend the time to care for their fish, help a person and actually know what they are doing. Good for you.
Danielle C. - 2010-04-12
I just wanted to let you know that in the paragraph describing the coloration of the boseman's rainbow fish the colours are described backwards. It says the front half is orange/yellow and the back half is blue when it should be the other way around, front is blue and back is orange. The pictures clearly depict the correct colour pattern but the text is just backwards. Just wanted to let you know, thank you for reading, Danielle

Dr. Jungle says, "Thanks Danielle, you rock! I think I was seeing cross-eyed that day... :)"