Armored Catfishes (Loricariidae)

Golden Loricarid

Rineloricaria microlepidogaster

The fish known as the Golden Loricarid or Six-banded Loricarid, scientifically named Rineloricaria microlepidogaster, is a member of the Armored Catfish family (Loricariidae). This catfish originates from South America. Its natural range covers the Paraná and Uruguay river basins, located in northern Argentina and the southern states of Brazil.

Tank
from 150 L (40 gal)
Temperature
22 – 26 °C (72 – 79 °F)
Size in aquarium
19 cm (7.5 in)
Acidity
pH 5.8–7.8
Natural rangeRange on the map
  • Paraná River Basin
  • Laguna dos Patos Basin
  • Uruguay River Basin
  • Argentina
  • Brazil

Tank conditions

Plan the tank stocking
Temperature
22 – 26 °C (72 – 79 °F)
Water pH
Slightly acidic (5.8) – Slightly alkaline (7.8)
Water dH
Soft (5) – Very hard (20)
Water salinity
no salt (freshwater)
Size in aquarium
19 cm (7.5 in)
Lifespan
10 years
Temperament
Peaceful (regular)
Toward small fish
not a predator
Required aquarium volume
from 150 L (40 gal)
Lighting
dimmed
Substrate
rocky rock formations, boulders, etc.
Water flow
moderate or strong
Swimming level
near the bottom
Feeding
Plant-based algae, vegetables
Keeping
Both solitary and in group flexible
  • Lifespan. A lifespan to expect under good care, not a measured value: it depends heavily on tank volume, water quality and diet — and for selectively bred forms, on their origin as well.
  • Toward small fish. Based on the Predators category in the catalog or the temperament in the species parameters. “A risk to small fish” means the species is not a predator by habit, yet will swallow any fish that fits in its mouth.
  • Required aquarium volume. This is a husbandry recommendation, not a measured value: the volume depends on the keeping mode (both solitary and in group (flexible)), footprint, decor and tank mates.

Care and keeping

Description

The maximum recorded length for adult specimens is 19 cm. This fish is characterized by an elongated and slightly flattened body, transitioning into a very thin caudal peduncle, which terminates in a pointed tail at the top. The head has a pointed, wedge-shaped form. The mouth is located ventrally and is perfectly adapted for scraping algal growth from rocks and snags. Its coloration helps the fish camouflage itself on the rocky riverbed: its gray-yellow body is covered with dark, irregularly shaped spots. Some of these spots merge to form bands encircling the body.

Habitat

The species inhabits South America, specifically the Laguna dos Patos basin and the Paraná River in Brazil and Argentina. In nature, it occupies watercourses with slow or fast currents, preferring areas with rocky, sandy, or silty bottoms. The fish are found in both clear and turbid waters and can adapt to conditions with anthropogenic pollution.

Behavior and Compatibility

This fish exhibits a peaceful, non-aggressive nature and coexists well with other non-territorial and calm species that prefer the middle and upper water layers.

Care and Maintenance

The species is considered relatively undemanding. In their natural habitat, these fish can be found in a wide variety of water bodies—from quiet rivers with turbid water to swift streams with strong currents, as well as in water bodies with a certain level of pollution. When setting up a home aquarium, it is recommended to use a rocky substrate, natural snags of various sizes, and areas with aquatic plants. Providing subdued lighting is desirable. The Six-banded Loricarid can adapt to a wide range of hydrochemical parameters, which significantly simplifies the water preparation process during regular aquarium maintenance. It is sufficient to use dechlorinated clean water and ensure that organic waste does not accumulate. This can be achieved through weekly substrate cleaning and ensuring the uninterrupted operation of the filtration system.

Diet

The diet must be based on plant-based foods. Algae granules, tablets, and wafers are an excellent choice. Additionally, regular sinking foods can be used as a source of protein supplements.

Breeding and Reproduction

Breeding occurs in shelters, which the fish use as tubes or crevices. The male cares for the offspring, guarding the clutch of eggs until the larvae hatch. High-quality nutrition and maintaining stable water parameters often stimulate spawning. The hatched fry require microscopic organisms and specialized foods in the aquarium for successful growth.

Diseases

The species has moderate resilience but is sensitive to high levels of nitrogenous compounds in the water. Under poor keeping conditions, bacterial infections and skin lesions may develop. Prevention includes regular water changes, effective filtration, and maintaining substrate cleanliness, as the accumulation of organic matter provokes health deterioration.

How to choose

When selecting specimens, attention should be paid to the fish's activity during twilight hours and the condition of its skin, which should be free of ulcers, film, or damage. A healthy loricarid should have a well-fed body without a sunken abdomen. It is recommended to avoid specimens with signs of emaciation or apathetic behavior, and to check for all fins and the integrity of the caudal filament.

Compatibility

There are no pair reviews for this species yet — check tankmates in the matcher.

All tankmates

Plants and this fish

Matching water does not mean the plant will stay intact.

Frequently asked questions

The essentials: size, tank volume, water parameters and care

How big does Golden Loricarid get?

An adult reaches 19 cm in length. Plan the tank around the maximum size: the fish quickly outgrows a cramped setup.

What size aquarium does Golden Loricarid need?

The recommended volume is 150 L. A smaller tank speeds up nitrate build-up and raises stress levels.

What water parameters does Golden Loricarid need?

Temperature 22–26 °C, pH 5.8–7.8, hardness 5–20 dGH. Stability matters more than exact values: sudden swings are harder on the fish than a small deviation from the ideal.

How long does Golden Loricarid live?

Around 10 years when kept properly. Lifespan depends directly on tank volume, water quality and a varied diet.

Is Golden Loricarid aggressive?

Temperament: peaceful (regular). Keep this in mind when choosing tank mates.

How many Golden Loricarid should be kept together?

Recommended setup: both solitary and in group (flexible). Ignoring this is a common cause of stress and disease.

What does Golden Loricarid eat?

Diet type: plant-based (algae, vegetables). Feed small portions that are finished within a couple of minutes — overfeeding does more harm than underfeeding.

What is the scientific name of Golden Loricarid?

The scientific name of the species is Rineloricaria microlepidogaster, family Armored Catfishes (Loricariidae). It also appears in the literature as: Loricaria microlepidogaster.

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Other scientific names and conservation status

Other scientific names
Loricaria microlepidogaster
Categories
Catfish
Conservation status
Least concernLC