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Barred Topminnow

Quintana atrizona

A tiny Cuban livebearer that disappears into dense plant thickets.

Barred Topminnow
AI-generated illustration
© Google Gemini 2.5 Flash Image · AI-generated

About

The Barred Topminnow (Quintana atrizona) is a diminutive livebearer from Cuba, where it inhabits slow-moving, heavily vegetated ponds and waterways. It is one of those small fish that rewards patient observation. Adults rarely exceed an inch and a half, so you really need a well-planted tank to appreciate them at their best. The name hints at the banded patterning that runs along the body, a subtle but attractive feature on such a compact fish. In the aquarium, dense plantings are not just decorative but genuinely important to this species, replicating the thick aquatic vegetation it relies on in the wild for cover and likely for foraging. A well-established planted setup suits it far better than a bare or sparsely decorated tank. Because of its small size and preference for specific conditions, it works well in a species-only setup or alongside other peaceful, similarly sized fish that won't outcompete or harass it. The care level is listed as intermediate, mostly because keeping such a small fish thriving long-term requires attention to water quality and appropriate tank mates rather than any single difficult demand. Not a fish for everyone, but a genuinely interesting species for the hobbyist who enjoys working with Cuba's less-celebrated freshwater fauna.

Frequently asked questions

How big does the Barred Topminnow get?
The Barred Topminnow reaches about 0.5–1.5" as an adult.
What size tank does the Barred Topminnow need?
A minimum of 10 gallons is recommended for the Barred Topminnow.
What water parameters does the Barred Topminnow need?
The Barred Topminnow does best with a temperature of 75–82°F, a pH of 6.8–7, hardness around 12–15 dGH.
Is the Barred Topminnow aggressive?
The Barred Topminnow is generally peaceful and suits a community tank with similarly calm tankmates.
What does the Barred Topminnow eat?
The Barred Topminnow is an omnivore. It does well on a varied diet of quality flake or pellet plus occasional frozen or live foods.
How long does the Barred Topminnow live?
With good care, the Barred Topminnow typically lives 2-3 years.