One of the true dwarf Corydoras species. Unlike most of their bottom-dwelling cousins, the Tailspot Cory spends a significant amount of its time hovering in the mid-water column. They are incredibly peaceful, schooling nano fish that must be kept in groups. A fine sand substrate is highly recommended to protect their delicate sensory barbels when they do forage on the bottom.
Dwarf Cory (Tailspot Cory) At a Glance
Dwarf Cory (Tailspot Cory) Tank Requirements
Will Dwarf Cory (Tailspot Cory) fit in your tank?
Care guides tell you what Dwarf Cory (Tailspot Cory) needs, the next question is whether your tank can safely provide it. Test Dwarf Cory (Tailspot Cory) against your tank size, maintenance needs, and the fish you already keep before you buy.
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Dwarf Cory (Tailspot Cory) Water Parameters
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Dwarf Cory (Tailspot Cory) Temperament & Compatibility
Dwarf Cory (Tailspot Cory) Varieties
Each variety inherits the species defaults above. Only differences are highlighted.
Standard
The standard wild-type form. Must be kept in a group of at least 6 (ideally 10+) to feel secure and display their unique mid-water schooling behavior.
Same care requirements as the base species
Also known as: Wild Type
Dwarf Cory (Tailspot Cory) Care Guide Summary
The Dwarf Cory (Tailspot Cory), scientifically known as Corydoras hastatus, belongs to the Catfish family group. Adults reach a maximum size of approximately 3.5 cm and have a fusiform body shape with a moderate growth rate. Classified as peaceful, this species primarily occupies the mid-level and bottom zones of the aquarium and produces a low level of biological waste.
To thrive, the Dwarf Cory (Tailspot Cory) requires a freshwater only aquarium with a minimum volume of 38 litres and a tank length of at least 45 cm. Water temperature should be maintained between 20°C and 28°C, with a pH range of 6–7.5 and a general hardness of 2–15 dGH. A moderate water flow is preferred.
The Dwarf Cory (Tailspot Cory) is a rewarding species to keep, provided its core environmental needs are met. The Dwarf Cory (Tailspot Cory) is typically available in one standard form.
Dwarf Cory (Tailspot Cory) Habitat Setup
When setting up an aquarium for the Dwarf Cory (Tailspot Cory), a moderate water flow best suits their natural preferences. Because this species occupies the mid-level and bottom zones, the aquarium layout should prioritise open swimming space in the centre of the tank for free movement and sufficient floor space with hiding spots among rocks, wood, or dense planting. Useful additions include a sand substrate to accommodate their sifting behaviour and dense planting to provide cover, break sightlines, and reduce stress.
Dwarf Cory (Tailspot Cory) Compatibility Notes
Classified as peaceful, the Dwarf Cory (Tailspot Cory) is a schooling species that feels most secure in a sizeable group, where natural shoaling behaviour reduces stress and brings out their best colours. Selecting tankmates that favour different water layers from the mid-level and bottom zones can help reduce competition and territorial overlap.
Dwarf Cory (Tailspot Cory) Recommended Tank Sizes
Standard aquarium sizes that meet the minimum volume and length requirements for Dwarf Cory (Tailspot Cory).
10 Gallon Standard
15 Gallon Standard
20 Gallon High
20 Gallon Long
29 Gallon Standard
30 Gallon Breeder
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Frequently Asked Questions About Dwarf Cory (Tailspot Cory)
How big does Dwarf Cory (Tailspot Cory) get?
Dwarf Cory (Tailspot Cory) (Corydoras hastatus) typically reaches a maximum adult size of approximately 3.5 cm. They have a fusiform body shape and a moderate growth rate.
What tank size does Dwarf Cory (Tailspot Cory) need?
A minimum aquarium volume of 38 litres and a tank length of at least 45 cm are recommended for Dwarf Cory (Tailspot Cory). This ensures enough swimming space and helps maintain stable water conditions.
What water parameters does Dwarf Cory (Tailspot Cory) need?
Dwarf Cory (Tailspot Cory) thrives in freshwater only conditions with a temperature range of 20–28°C, a pH between 6 and 7.5, and a general hardness of 2–15 dGH. A moderate water flow is preferred.
Is Dwarf Cory (Tailspot Cory) peaceful or aggressive?
Dwarf Cory (Tailspot Cory) is classified as peaceful with an aggression score of 0 out of 10. They are generally well-suited to peaceful community tanks.
How many Dwarf Cory (Tailspot Cory) should be kept together?
Dwarf Cory (Tailspot Cory) is a schooling species and should be kept in groups of at least 6. Larger groups help distribute aggression and encourage natural schooling behaviour.
Does Dwarf Cory (Tailspot Cory) have any special tank requirements?
Yes. Dwarf Cory (Tailspot Cory) benefits from sand (sifters) and plants - densely covered in the aquarium. These features help replicate their natural habitat and promote overall health and well-being.
Top Tank Mates for Dwarf Cory (Tailspot Cory)
These fish are strong compatibility matches for Dwarf Cory (Tailspot Cory) based on water preferences, temperament, adult size, and tank behavior.
Golden Bristlenose Pleco
Ancistrus sp. L144
Ideal Tank MatesAssassin Snail
Anentome helena
Ideal Tank MatesBristlenose Pleco
Ancistrus cf. cirrhosus
Ideal Tank MatesRamshorn Snail
Planorbidae fam.
Ideal Tank MatesPlants That Suit Dwarf Cory (Tailspot Cory)
These plants pair well with Dwarf Cory (Tailspot Cory) based on shared water preferences, layout fit, and how likely they are to hold up in the same aquarium.
Afzel's Anubias
Anubias afzelii
Amazon Sword
Echinodorus amazonicus
Anacharis
Egeria densa
Anubias Barteri
Anubias barteri
Baby Tears
Lindernia rotundifolia
Balansae
Cryptocoryne crispatula
Fish Similar to Dwarf Cory (Tailspot Cory)
Pygmy Corydoras
Corydoras pygmaeus
One of the smallest Corydoras species, the Pygmy Cory is a true nano fish. Unlike most of their bottom-dwelling cousins, Pygmy Corys are famous for hovering and schooling in the mid-water area. They are extremely peaceful but very shy, requiring a proper school to feel secure. A soft sand substrate is absolutely required to protect their delicate barbels.
Dainty Cory (Salt and Pepper Cory)
Corydoras habrosus
A true dwarf Corydoras species, the Dainty Cory (Corydoras habrosus) is a highly active, peaceful bottom dweller. Unlike the Pygmy Cory (C. pygmaeus) which frequently swims in the mid-water column, the Habrosus stays true to typical Corydoras behavior by constantly sifting the substrate. They must be kept on fine sand to protect their delicate barbels and require a school of at least 6 to feel secure.
Julii Corydoras (False Julii)
Corydoras trilineatus
Often sold in the aquarium trade as the 'Julii Cory', the False Julii (Corydoras trilineatus) is a peaceful, highly social bottom-dweller. It features a distinct reticulated (maze-like) pattern on its head and a prominent horizontal stripe down its body. As an obligate schooling fish, it must be kept in groups to thrive and feel secure. A soft sand substrate is absolutely critical to prevent the erosion of their sensitive foraging barbels.
Black Fin Cory
Corydoras leucomelas
A peaceful schooling catfish native to the Amazon basin, easily identified by its black dorsal fin and a dark mask-like band across its eyes. Like all Corydoras, they are bottom-dwellers that use sensitive barbels to forage. They possess a modified intestine allowing them to gulp atmospheric air, so occasional darts to the surface are normal. They are highly social and require a soft sandy substrate to prevent barbel erosion.
Asher Cory
Corydoras tukano
A striking and relatively uncommon small Corydoras originating from the blackwater Rio Tiquié in the upper Rio Negro basin. Known for its prominent vertical black bands across a pale tan or golden body. Like all Corydoras, they are completely peaceful, highly social bottom dwellers that must be kept in groups. A fine sand substrate is absolutely critical to prevent damage to their delicate barbels as they constantly sift for food.
Bronze Corydoras
Corydoras aeneus
A highly popular, peaceful schooling catfish known for its armor-like scales (scutes) and active bottom-feeding behavior. They are essential clean-up crew members but require a dedicated sinking diet (not just leftovers). Sand substrate is strictly required to prevent erosion and infection of their sensitive barbels. They are 'gut breathers' and will occasionally dart to the surface to gulp atmospheric air.