Girardinus metallicus

Girardinus metallicus

Girardinus metallicus (Girardinus metallicus) — Easy care, Peaceful, under Livebearer & Killifish. Minimum tank in the app: 15.9 US gal min; aim for 68–79°F and pH 7–8.5. Details below match the app.

Girardinus metallicus (Girardinus metallicus) in a planted freshwater aquarium
Care levelEasy
TemperamentPeaceful
Min tank size15.9 US gal min
pH range7–8.5
Temperature68–79°F
Max size2.4 in (6.0 cm)
Captive lifespan2–4 years
SchoolingYes · 6+ recommended

Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.

Natural distribution

Central America

  • Central America & Mexico

Regional colours match the stocking calculator’s origin map.

Girardinus metallicus Tank Setup

Plan for at least 15.9 US gal min of water—that is the minimum in our database for a workable setup, not a challenge to crowd fish. Aim to hold 68–79°F and pH 7–8.5 without daily drama. These fish use the Mid zone most, so put wood, plants, or open water there accordingly.

What Do Girardinus metallicus Eat?

We record diet as Omnivore. Offer a few food types that match—dry, frozen, or gel—and swap now and then. One flake every day for a year is how dull color and gut trouble creep in.

Girardinus metallicus Tank Mates

Temperament in the data: Peaceful. Metallic Topminnow; hardy livebearer from Cuba. Peaceful community fish. Plug your full stock list into the stocking calculator—single-species compatibility scores are hints, not a whole-tank verdict.

Are Girardinus metallicus Good for Beginners?

Often a sensible first fish once the tank is cycled and you are willing to test water sometimes. Skip the impulse buy on the same day you set up the tank.

Building a community? Run the full list through the stocking calculator before you add anything else.

Log tests and reminders in App-aquatic—free, same data you see here.