Loxozonus Corydoras
Scientific Name: Corydoras loxozonus
Common Names: Loxozonus Cory, Diagonal-Bar Cory
Origin: Colombia (Upper Meta River basin)
Size: 5–6 cm
Temperament: Peaceful, schooling
Lifespan: 5–8 years
 
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.
It is a peaceful, social shoaling catfish that thrives in groups of 6 or more, showing natural foraging behaviour and reduced stress. Like all Corydoras, they require soft, smooth substrates and excellent water quality.
 
Care Sheet
Tank Requirements
Minimum Tank: 70–90 L (group of 6+)
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
 
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.
 
Diet
Omnivorous bottom feeder.
Sinking micro-pellets
High-quality catfish wafers
Frozen bloodworms, brine shrimp, daphnia
Live blackworms (treat)
Blanched vegetables occasionally
Avoid: Only feeding flake foods — they rarely reach the bottom in time.
 
Behaviour & Tankmates
Very peaceful
Schooling species — keep 6–10 minimum
Ideal tankmates:
Small tetras, rasboras
Apistogramma
Gouramis
Pencilfish
Peaceful loaches
Avoid:
Large or aggressive cichlids
Fast, boisterous bottom dwellers
Sharp gravel substrates
 
Breeding
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
Baby brine shrimp
Micro-powder fry food