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Ruby Tetra | Axelrodia riesei

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Ruby Tetra | Red Dwarf Tetra

The Ruby Tetra is an absolute stunning nano fish with hints of reddish orange color. They truly stand out in a planted aquarium. It is important to provide hiding places for these fish as they can get stressed out. We recommend rock and driftwood to create caves and crevices.

Please Note: All fish shipments have a 100% Live Arrival Guarantee when shipping with Overnight (1 Day) option. All other options void our Live Arrival Guarantee for fish. 

The Ruby Tetra will reach sizes of about 1 inch. They are pretty peaceful. Although, we would not recommend keeping them with shrimp. They prefer small live foods so baby shrimp would become an easy target. 

The scientific name for the Ruby Tetra is Axelrodia riesei.

We feed our Ruby Tetras a mix of frozen foods including daphnia, baby brine and cyclops. We occasionally feed them Northfin Veggie. 

Our Tank Parameters

  • Ph:6.2 to 7.5
  • Gh:8 to 16
  • Kh: 4 to 7
  • TDS:180 to 250
  • Temp:70 to 74

Tank Recommendations

  • Leaves: Indian Almond or Guava
  • Wood: Mopani or Malaysian
  • Cones: Alder Cones
  • Other: Active substrate to lower pH
  • 5 stars: 16 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
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Sue Judith Belano
Ruby tetras

These have to be one of my favorite tetras! They are a glowy orange with pretty black and white markings on the fins and a jewel toned spot on their tail, not to mention their fiesty and fearless personalities!

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Brian Sallie
Great Nano Fish!

3+ year review! I ordered 12 Ruby Tetras 9/27/2021, shipped 9/29/2021 and 14 arrived 9/30/2021. A month later I order another 5 (+1 free) as well as 10 (+2 free) Green Kubotai Rasbora and I moved them all into a UNS90L planted tank with some cories I had. I couldn't be happier with my purchase. The Ruby Tetra's were very shy on their own, but with the GKB's they became more comfortable. They are still a very shy fish in comparison to other nano fish I have kept, but very unique fish. All 32 have thrived in my tank for over 3 years. Provide them with live plants (floating plants a bonus), hiding spots (rock, wood), low flow, and some botanicals/blackwater and maybe some less shy companions to help bring them out and they will do well for you. I'm trying something different for my next tank, but I will consider Ruby Tetras again in the future. Thanks Flip Aquatics!

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Alexandra Ward
Just awesomeness!

I love the Ruby Tetras. They arrived safely and colored up in less than 4 hours which was a pleasant surprise. Pleasure doing business with a stellar company. Will definitely be buying from you again. Thanks

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Thomas Sims

Ruby Tetra

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Hector Cruz-Rosa
Great fish! All alive and kicking!

As usual, Flip Aquatics gets it right! Quality fish, utmost quality and consistently alive upon arrival.

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Leigh-Ann Smith
Healthy little guys

All 4 of my ruby tetras arrived quickly, safe, healthy, and happy. I tried to buy 6 but there were only 4 available. They are schooling with my ember tetras. They were packaged well for their travels. I would definitely recommend Flip Aquatics

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Daniel Morris
Tough Little Guys

These ruby tetra have a really neat color vs your standard ember tetra. We love their shiny little tail spots. Also, they are resilient against new tank syndrome. Ordered a school of 14 and every single one survived ten days above 3 ppm ammonia along with daily water changes.

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Sarah Juarez
Ruby Tetras

The tetras arrived a day late because of a delay with UPS and unfortunately, one of the tetras was dead on arrival, but there were six total, so I did get five healthy little tetras! They were quite spooked at first but I followed the directions and they’ve acclimated quite well and like to hang out with my ember tetras in the tank. They’re eating well and gaining their color back, overall I’m very pleased with my purchase and will definitely be buying from flip aquatics again!

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Shannon Raemer
Beautiful shy fish

Beautiful nano fish. Perfect for a cave scape. They sit still more than the other fish and you really get a good look at them. They are a little shy.

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Mary Krumme
Adorable!

Very happy with the delivery. Fish and snails arrived perfectly. I like the fact that you ship the snails in water. Less stress on them.

My first experience with the breather bags...very interesting.

The Ruby tetras are so tiny and cute. They are getting along very well with my Embers.

Thank you!
I will definitely order from you guys again...Mary K

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Sonny Gordon
Ruby ruby

These tetras came in healthy as usual from flip and are a great addition to my tetra tank

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Ian LaSpina
Wonderful Fish!

My Ruby Tetras arrived quickly, safely and were packed extremely well. I drip acclimated them upon arrival and then added them to my aquarium. They colored up very quickly after exploring their new home and have been thriving ever since! They're gorgeous little fish and Flip Aquatics always does a great job.

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Michael Burgess
Ruby Tetra, excellent specimens!

These are pretty hard to find. I was absolutely impressed with the group of fish I received. They were all very healthy, well fed, and showed no signs of stress or potential issues. Within a a day or two, they started to color up in the tail section that has the bi-color, diamond shaped spot as well as the rest of their bodies. They're a curious playful little fish and are doing well in their new surroundings. They're young so they're on the small side so I recommend a small nutritious food like daphnia. Mine love it! I'm ready to order more and give them their own Nano tank habitat. Excellent specimen. Thanks Amanda for the packaging, to Rob and the rest of the Flip Aquatics family!

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Brandon Wise
Perfect!

All fish were alive upon delivery and very healthy. Packaged well and acclimated into my aquarium without issue. I love these lil guys and always love buying from Flip Aquatics!

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ruby VALDEZ
AWSOME FISH STORE

YOU GUYS ROCK!, AND IM SENDING MORE PEOPLE YOUR WAY. THANK YOU. I ESPECIALLY LIKE YOUR BAGS AND HOW YOU SHIP SO SAFE.

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Trish M
Nice little fish

Ordered the Ruby tetra's and they are pretty and vibrant in my 40 gallon tank and schooled up with the ember tetras already in the tank.
great seller with healthy livestock.