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Description
[ARRIVED 10-JAN-2026] SUPER RARE: Corydoras Hastatus - The Dwarf Sedge Cory 1-2cmCorydoras hastatus (Tail Spot Corydoras) Tiny schooling cory that spends most of its time in mid water Quick Facts Size: ~2. 53 cm Tank size: 20L+ recommended Difficulty: Moderate Temperament: Peaceful Best kept: Groups (810+) Plant safe: Yes Is this for you? Good if: You want a nano schooling fish with unique behaviour You enjoy mid water activity in small tanks You have a peaceful planted aquarium You are happy to keep a larger group Avoid if: You
Corydoras hastatus (Tail Spot Corydoras)
Tiny schooling cory that spends most of its time in mid-water
Quick Facts
- Size: ~2.5–3 cm
- Tank size: 20L+ recommended
- Difficulty: 🟡 Moderate
- Temperament: Peaceful
- Best kept: Groups (8–10+)
- Plant safe: Yes
Is this for you?
✔️ Good if:
- You want a nano schooling fish with unique behaviour
- You enjoy mid-water activity in small tanks
- You have a peaceful planted aquarium
- You are happy to keep a larger group
❌ Avoid if:
- You want a traditional bottom-dwelling cory
- You plan to keep just a few
- You keep larger or aggressive fish
- You expect them to clean the tank
Why this fish?
Corydoras hastatus is one of the smallest corydoras species, known for its distinct tail spot and schooling behaviour.
Unlike most corys, they spend much of their time swimming in the mid-water in tight groups, making them more like a nano schooling fish than a typical bottom-dweller.
Common mistakes
- Keeping them in small groups → leads to stress and poor behaviour
- Expecting bottom-dwelling behaviour
- Keeping with larger fish that intimidate them
- Underfeeding due to their small size
- Assuming they replace tank maintenance
Care made simple
- Temperature: 22–26°C
- Diet: Micro pellets, fine foods, small frozen foods
- Group size: 8–10+ recommended
- Substrate: Soft sand preferred
- Water: Clean, stable, well-maintained
Pair with
- Micro pellets / fine foods
- Fine sand substrate
- Dense plants
- Small peaceful nano fish
This species behaves more like a nano schooling fish than a typical cory. The larger the group, the tighter and more natural their schooling behaviour becomes.
FAQ
Are they bottom dwellers?
Not really. They spend a lot of time swimming mid-water and only occasionally rest on the substrate.
How many should I keep?
At least 8–10 is recommended. Larger groups show much better behaviour.
Are they good for nano tanks?
Yes, they are ideal for nano setups when kept in groups.
Do they clean the tank?
No. They still require proper feeding and care.
What do they eat?
Micro pellets, fine foods, and small frozen foods suitable for nano fish.
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