Rasbora Dwarf Emerald qty 3

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Product Overview

The emerald dwarf rasbora (Microrasbora erythromicron) is a  tiny fish. Barely an inch long when full-grown, it might go unnoticed in a dealer’s tank. Although it is placed in the genus Microrasbora, that will likely change soon because it has been discovered that they are actually more closely related to danios than to rasboras. Though the species was described in 1918, it took  another 60 or so years to make it into the tanks of hobbyists. Even  today, it is not a common fish. 

Its beauty and interesting behavior make it a fish to look for and  work with once you get lucky enough to find it. It is a pinkish-orange  fish with up to 15 emerald green bars along its side. There is a black  spot at the base of the caudal fin. Males have reddish-orange in their  fins, while females have clear fins and are a bit less colorful. It has a high body that gives it a stocky appearance. In happy, well-cared-for  fish, the emerald green looks like it is glowing and is set off by the  bright fins. The males spar and dance for one another, and the sight of a healthy group in a well-planted tank is not something you’ll soon  forget.

Order: Cypriniformes
Suborder: Cyprinoidei
Family: Cyprinidae
Genera: Danio
Species: Danio erythromicron (Microrasbora erythromicron)


Size: Max length: Up to .75 in (2 cm)
Tank: School of 6: 10-15 gallons (38-57 liters) or larger.
Strata: Bottom levels
PH: pH range: 7.0 – 8.0
Hardness: medium to hard. dH range: 10 – 25.
Temperature: 68°F to 75°F (20-24°C)


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  • 5
    Great Fish!

    Posted by Lisa Wysong on 7th Jun 2016

    Thanks Alpha Pro Breeders, My fish arrived on time and healthy. Each one it it's own individual bag to prevent injury. They were a bit pale but colored up nicely after a day in the tank. They are darting around happily in my heavily planted tank.

    If you by these fish make sure you have plenty of hiding places and allot of patients. If you sit quietly by your tank you'll get to see these beauties and there quirky behavior, very fun to watch!

    I will definitely be buying from you in the future.

  • 4
    very healthy fish

    Posted by Unknown on 18th Apr 2015

    They arrived healthy and the packing is also nice.

  • 4
    Nice Emeralds

    Posted by Corey on 23rd Mar 2015

    These Emeralds are nice. I received three of them and am looking forward to seeing their colors when they get bigger. Make sure to ship Next Day Air!

  • 5
    Definitely will get more eventually

    Posted by Unknown on 8th Nov 2014

    These are really cool fish. Definitely going to add to their numbers.

  • 5
    Wish there were ten stars!

    Posted by Mary Ann Forehand on 27th Oct 2014

    I love that each fish was so carefully packed in its own bag! No chance of injuries and it was so great to see how carefully they were wrapped up. They are already spawning in the QT tank so they will go directly to breeding tank. I love them!

  • 5
    Very Happy

    Posted by Unknown on 16th Jul 2014

    My first experience purchasing animals online. The fish arrived as promised - very fast, very active and had no problems with acclimation. I will be doing business again with Alpha Pro Breeders.

  • 5
    Super active, great color, great price

    Posted by Victor on 9th Apr 2014

    Arrived well packaged and healthy! Great dither for GBRs

  • 5
    Beautiful Fish!

    Posted by Kim on 1st Feb 2014

    My Dwarf Emeralds arrived safely and healthy! They are gorgeous little fish that like to hide behind plants and come out when they feel secure. It's cute to watch them peek out from behind a plant before swimming out into the open. I would like to have even more of these little guys!

  • 5
    Great Microfish!

    Posted by Unknown on 12th Jan 2014

    My school of 9 is still darting around happily and healthy >1 month since purchase. Great little fish. They tend to hide a lot (they're in with dwarf pencils and a few ottos), so would recommend them as better suited for a iwagumi-type set-up, but either way are quite active.