Argentine Humphead
Gymnogeophagus balzanii
Argentine Humphead (Gymnogeophagus balzanii) is a freshwater fish that suits calm freshwater aquariums. Its adult size of up to 12 cm should still be matched with stable water and compatible fish.
Quick facts
- Adult size
- up to 12 cm
- Aquarium size
- 200 L or larger
- Care level
- Intermediate
- Temperament
- Semi-Aggressive
- Temperature
- 16–26 °C
- pH
- 6.5–7.5
- GH
- 5–15 dGH
- Diet
- Omnivore
- Lifespan
- up to 8 years
- Group behavior
- No; 1 Male + Several Females
Overview
Argentine Humphead (Gymnogeophagus balzanii) is a freshwater aquarium fish for aquariums where the layout leaves enough swimming room and the water stays stable.
Use these values as planning checks, then make sure the aquarium still has room for behavior, group needs, and calm community fish.
Care requirements
With a Intermediate care level, Argentine Humphead is best for aquarists who can keep water quality steady and plan compatibility before adding the fish.
With a lifespan of up to 8 years, this is a fish to plan for long term rather than an impulse addition.
Aquarium size and space needs
An aquarium of 200 L or larger can be a reasonable starting point, but it should not be read as permission to overstock.
At up to 12 cm, Argentine Humphead stays small, but it still needs room to move, feed, and avoid constant competition.
Water parameters
The temperature range for this fish is 16 to 26 °C, which fits many tropical freshwater aquariums. Choose other fish with overlapping temperature needs.
The pH range for this fish is 6.5 to 7.5. That points to slightly acidic to neutral water, but stability is more important than sudden corrections.
The GH range for this fish is 5 to 15 dGH. That gives some flexibility, but sudden changes are usually more stressful than a stable value that is slightly imperfect.
Temperament and compatibility
Argentine Humphead needs more careful companion choice because the temperament data suggests space, boundaries, or similar-sized fish may matter.
Feeding
As an omnivore, Argentine Humphead should receive a varied diet rather than one repeated food type.
Natural habitat and origin
This profile currently lists the origin as Argentina Brazil Paraguay Uruguay. Treat this as a broad regional note rather than a complete habitat description.
Before adding this fish
Use this checklist before treating the profile as a match for an existing aquarium.
- Plan for an aquarium of 200 L or larger.
- Choose other fish with overlapping temperature needs.
- Keep pH stable within the listed range instead of making sudden corrections.
- Choose other fish carefully around this temperament.
- Offer a varied diet that matches this species.
Similar fish profiles
Use these profiles to compare fish with similar care level, size, temperature range, or swimming behavior.
FAQ
How large does Argentine Humphead get?
Argentine Humphead reaches up to 12 cm according to this profile. It stays relatively small, but aquarium planning should still account for swimming room.
What aquarium size does Argentine Humphead need?
Plan for an aquarium of 200 L or larger. Treat this as a baseline, because fish also need suitable swimming room and compatible fish.
Is Argentine Humphead peaceful?
Argentine Humphead needs more careful companion choice because the temperament data points toward boundaries, space, or similar-sized fish.
What temperature is suitable for Argentine Humphead?
The temperature range for this fish is 16 to 26 °C. Choose other fish with overlapping temperature needs and avoid sudden temperature swings.