Ruby Tetra
Axelrodia riesei
What you need to keep a Ruby Tetra
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pH
5–6.5
Temperature
23–28 °C
Where to buy
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Overview
What to know before you buy.
A stunning nano fish, the Ruby Tetra displays an intense, ruby-red coloration, especially in males. They are shy and do best in a dedicated species tank or with other very small, peaceful fish and shrimp. A heavily planted tank with soft, acidic water is required to see them at their best.
Key traits
Care guide
Keeping Ruby Tetra healthy in a South African setup.
Tank setup
Size the aquarium to Ruby Tetra's adult size and activity level. Provide hiding spots and stable, well-filtered water; it suits a community setup.
Water parameters
Keep pH 5–6.5 and 23–28°C. Stable parameters matter more than chasing perfect numbers; acclimate new arrivals slowly.
Feeding
Omnivore. Feed small amounts it clears in a couple of minutes, and vary the diet.
Behaviour
Peaceful. Keep it in a group for natural behaviour.
Tankmates
Choose tankmates of similar size and temperament with the same water needs. Avoid fin-nippers and anything large enough to eat it.
Breeding
Breeding success with Ruby Tetra depends on the line and water chemistry; ask your shop about proven pairs.
Settling this fish in?
Condition the tap water, seed the filter, test through the first weeks — most early losses trace back to one of those.
10% off your first order, no code, at checkout
Availability confirmed with the distributor before dispatch · free delivery over r750
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Market intelligence
Price trends and buyer demand — data only FishHub tracks.
Price history — last 90 days
SA price range this month: R45–45 · Average: R45
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