LOXOZONUS CORYDORAS

Common Name: Loxozonus Cory, Diagonal-Bar Cory

Scientific Name: Corydoras loxozonus

Family: Callichthyidae

Origin: Colombia (Upper Meta River basin)

SPECIES OVERVIEW

Corydoras loxozonus is a striking mid-sized Corydoras known for its bold diagonal black stripe running from the dorsal fin down the body toward the tail. This unique marking sets it apart from other Cory species and makes it a standout in planted or sand-bottom tanks.

CARE REQUIREMENTS

Temperament: Peaceful, schooling

Lifespan: 5–8 years

Adult Size: 5–6 cm

Minimum Tank: 70–90 L (group of 6+)

WATER PARAMETERS

Temperature: 22–26°C

pH: 6.0–7.2

Hardness: 2–10 dGH

Nitrates: <20 ppm (very sensitive to high nitrates)

Prefers slightly acidic, soft, Amazon-style conditions.

AQUARIUM SETUP

Aquascape: Sand substrate (essential for barbels)

Driftwood, leaf litter, low plants

Open floor space for feeding

Filtration: Moderate; clean, well-oxygenated water

Lighting: Low–moderate

Avoid sharp gravel that may damage barbels.

DIET & FEEDING

Omnivorous bottom feeder.

• Sinking micro-pellets

• High-quality catfish wafers

• Frozen bloodworms, brine shrimp, daphnia

• Live blackworms (treat)

• Blanched vegetables occasionally

• Baby brine shrimp

Avoid: Only feeding flake foods — they rarely reach the bottom in time.

TANKMATES

Very peaceful

Ideal tankmates:

• Small tetras, rasboras

• Apistogramma

• Gouramis

• Pencilfish

Peaceful loaches

Avoid:

• Large or aggressive cichlids

• Fast, boisterous bottom dwellers

GROUP SIZE

It is a peaceful, social shoaling catfish that thrives in groups of 6 or more, showing natural foraging behaviour and reduced stress.

IMPORTANT INFORMATION

Typical Corydoras T-shape spawning

Cooler water changes trigger spawning

Eggs usually placed on glass, plants, or decor

Remove adults if wanting to save fry

Eggs hatch: 3–5 days

Fry food:

Infusoria

Micro-powder fry food