Animal Stories - Dwarf Neon Rainbowfish

Animal-World Information about: Dwarf Neon Rainbowfish

Once the beautiful Dwarf Neon Rainbowfish is established it needs no pampering!
Latest Animal Stories
Dani B. - 2007-12-11
My dwarf neon rainbows are a delight to keep! They are active, happy, and hearty eaters. I started with a trio of 1 male and 2 females. I quickly added 2 more males, and 5 more females for a total of 10. They are a beautiful grouping in a 20 gallon. I would highly recommend a tank dedicated to them.

Ps. I did receive these from a LFS who had just gotten them in and within a week all of them did develop ICK, but treated with Aquarisol they did quite well.

Trent Cloin - 2009-11-05
I have had my dwarf neons for about six months. The are great fish. Their colors get brighter with age. They are a lot of fun to watch. I have 3 males with 1 female in a 20 gallon tank. I know this is not a normal male/female stocking ratio, but my female seems to be doing quite well. The males will make advances at her for a few minutes in the mornings when I turn the aquarium light on. She doesn't pay much attention to them anyway. Beautiful fish and enjoyable to keep.

Holly - 2009-05-07
When I first got my dwarf rainbowfish, I asked for 2 females and 1 male. But when I got home I found out I had 2 males and 1 female. They all looked healthy and were feeding well. A week later I found one dead. I could not work out what was wrong so I watched the tank carefully. A week later I found another one dead. I was only left with a female. I was sad because they are amazing fish and I was now worried about my female. Now- 3 months later she is still around and doing great. After the last one died I added bacteria medicine. This worked and I saw a great advance in the females behaviour. She is shoaling with my other fish- but I feel it is unfair to leave her by herself. and wonder if I should I get more dwarf rainbowfish. I recommend these fish- they are great to watch. Just make sure they are healthy when you get them.

BigRob - 2011-09-10
These are beautiful fish. I have four different species of rainbows in a 37 gallon mixed with a few emerald and peppered corys and they do quite well they are fun to watch. Just be careful what fish you mix in. In my experience they are also killers yes killers .... Happy fishing

Cameron - 2018-02-26
When I was first establishing my 20g tank I was persuaded to add this adult male dwarf neon rainbowfish... I quickly read up that these fish are happier in groups of at least 5 and to keep them the same sex with that many. So I added three more males that appear to be juveniles, though I can at least see their colors. (the shop only had the three, they gave me a fourth that was female on accident) and Bo (the adult male) is absolutely brutal with them. Chasing nonstop. Food aggressive... just today I found one of the other males dead. His scales on either side looked nipped to pieces. To be honest I don't know if that happened before or after he died but he wasn't sick or anything prior. Is it possible that the adult is actually better off by himself? I would like to avoid any more casualties. I should note he's only aggressive with his own kind. The other fish he leaves alone.

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  • Rebecca Blanca - 2018-04-04
    Your male to female ratio is way off. You need at LEAST one female for every male. If you can add females, it should help your situation.
  • Wolfman­čÉ║ - 2020-02-05
    I would put these fish with redfin shinner fish as a community.
Smithd281 - 2014-05-05
I've been absent for a while, but now I remember why I used to love this website. Thanks, I'll try and check back more frequently. How frequently do you update your site?

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  • Typicalcat66 - 2019-12-26
    You, my pal, ROCK! I found just the information I already searched everywhere and simply couldn't find it. What a perfect site.
kathy - 2009-09-22
can I put my rainbowfis in the tank with cichlids

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  • Jake - 2014-04-17
    No, cichlids are very hostile towrds other species and will mostly fight the smaller rainbowfish.
Dan - 2012-04-22
I have 1 male and 2 female dwarf neons. I also have a beta that is a male. The beta enjoys chasing the dwarves only when the light is turned on. Should I be worried? Why is he doing this? Please answer

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  • Jeremy Roche - 2012-04-23
    If it isn't getting violent I wouldn't worry. Look for signs of stress. Sometimes moving the tanks decor may stop the betta from doing this as it will need to reestablish territory..
  • Clarice Brough - 2012-05-06
    Yeah, the problem with Betta fish is they are easily confused. They don't know their own kind as much as they know another fancy looking fish. They will often chase another fish just because its colorful.
brittany - 2012-04-15
I think my fish had babies. There are little tiny fish swimming around my tank but I'm scared my betta or pea puffer will eat them but if I put the babies in a different container I'm scared the will die...any tips would help!

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  • Jeremy Roche - 2012-04-15
    you can get a breeding container that goes in the actual tank. They normally hang off of the tank into the water. These makes it so you aren't shocking the fry with water condition changes.
Kassidy - 2010-08-06
I got 3 dwarf rainbow fish yesterday and quickly found out I had 1 male and 2 females,these are great fish and fun to watch eat,they do well in groups of 3 with the company of 3 serpae tetras, 3 pristella tetras, 1 rainbow shark,and a assassin snail, this combination is great for 10 gallon tanks=D

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  • Kandy - 2010-08-12
    Can you put them in with glowlight tetras and cherry barbs? What is the smallest number of Dwarf Rainbows you can put in?
  • Gwen - 2011-02-09
    Kassidy - how are things going with your Rainbow combination? I'm planning on getting 3 Dwarfs this weekend, and it seems like they don't recommend mixing sexes if you're going to only have 5 - I don't plan on having more than 5 as I only have a 29 gal. Thanks for any information!