Tailspot Pygmy Corydoras (Corydoras hastatus)

The Tailspot Pygmy Corydoras (Corydoras hastatus) is one of the smallest and most unique Corydoras species available in the aquarium hobby. Unlike most Cory catfish that spend nearly all their time on the substrate, Tailspot Pygmy Corys frequently swim in the middle water column, creating beautiful schooling displays throughout the aquarium.

Named for the distinctive black tail spot near the base of the caudal fin, these peaceful nano catfish are ideal for planted aquariums, shrimp tanks, and community setups with other small fish. Their gentle nature, tiny size, and fascinating behavior make them a favorite among aquascapers and nano aquarium enthusiasts.

Hardy, social, and incredibly entertaining, Corydoras hastatus adds activity to every level of the aquarium while remaining completely peaceful.

Quick Facts

• Scientific Name: Corydoras hastatus
• Common Names: Tailspot Pygmy Cory, Hastatus Cory
• Adult Size: 1–1.25 inches
• Temperament: Very Peaceful
• Care Level: Easy
• Diet: Omnivore
• Lifespan: 3–5 years
• Minimum Tank Size: 10 gallons
• Water Temperature: 72–78°F
• pH Range: 6.0–7.5
• Swimming Level: Bottom to Mid-Water
• Schooling Fish: Yes

Why Choose Tailspot Pygmy Corydoras?

✔ Tiny nano-friendly Corydoras species
✔ Distinctive black tail spot marking
✔ Unique mid-water schooling behavior
✔ Perfect for planted aquariums
✔ Peaceful with shrimp and nano fish
✔ Active and entertaining to watch

Aquarium Setup

Tailspot Pygmy Corys thrive in mature aquariums with soft substrate, dense planting, and calm tank mates.

Recommended setup:

• 10 gallons minimum
• Fine sand or smooth gravel
• Dense live plants
• Driftwood and leaf litter
• Gentle filtration
• Stable water parameters
• Groups of 6 or more

Heavily planted aquariums help these fish feel secure and encourage natural schooling behavior.

Diet & Feeding

Corydoras hastatus are omnivores and readily accept:

• Micro sinking pellets
• Crushed flakes
• Baby brine shrimp
• Daphnia
• Frozen cyclops
• Microworms
• Quality nano fish foods

Due to their small size, finely sized foods are recommended.

Tank Mates

Tailspot Pygmy Corydoras do well with:

• Ember Tetras
• Chili Rasboras
• Neon Green Rasboras
• Celestial Pearl Danios
• Endlers
• Pygmy Corydoras
• Shrimp
• Mystery Snails
• Nerite Snails

Avoid large fish that may view them as food.

Schooling Behavior

Tailspot Pygmy Corys are highly social fish and should always be kept in groups.

Recommended group sizes:

• Minimum: 6 fish
• Ideal: 10–20+ fish

Larger groups create stunning schooling displays and help the fish feel secure.

Frequently Asked Questions

Are Tailspot Pygmy Corys good for nano tanks?
Yes. Their tiny size and peaceful nature make them one of the best Corydoras species for nano aquariums.

Do they need to be kept in groups?
Absolutely. Groups of six or more are required, though larger groups are strongly recommended.

Do Tailspot Pygmy Corys swim in the middle of the tank?
Yes. Unlike most Corydoras, Corydoras hastatus frequently school in the mid-water column.

Do they eat algae?
No. They help consume leftover food but are not algae eaters.

Are they safe with shrimp?
Yes. They are completely shrimp-safe and excellent additions to shrimp-focused aquariums.

Available at Tropical Treasures Wyo

Shop healthy Tailspot Pygmy Corydoras (Corydoras hastatus) at Tropical Treasures Wyo in Cheyenne, Wyoming. These peaceful nano catfish are perfect for planted aquariums, shrimp tanks, and community fish keepers looking for one of the most unique Corydoras species available.

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