Hastatus Corydoras 1cm

Hastatus Corydoras

For aquarists wanting the charm of a corydoras species but in the tiniest possible package, look no further than the Hastatus corydoras. These miniature marvels are among the smallest members of the cory family, rarely exceeding 3 cm in length. They're a perfect addition for nano aquariums or planted tanks, especially for aquarists who want bottom dwellers that don't compromise on personality or aesthetic. While they're peaceful, active, and fun to watch, they also offer a unique contrast to other micro fish thanks to their unusual swimming behaviour.

Corydoras hastatus may not have the flamboyant colouration of larger species, but their subtle beauty is still captivating. They have a sleek, silvery body with a striking black spot near the tail, sometimes bordered by a white patch, giving them their common name "tail-spot cory." Unlike most Corydoras, their streamlined shape and midwater swimming behaviour make them look almost like tiny miniature tetras at first glance. These fish have a slightly transparent quality to their fins, and under good lighting, their delicate features really come to life. They are sensitive to poor water quality, sudden changes, or medications, and their lack of scales makes them vulnerable to disease, so a mature and stable tank is a must for long-term success

Breeding Corydoras hastatus is quite possible in home aquariums, and a rewarding challenge for aquarists wanting to try their hand at a nano breeding project. A small 30-litre tank with dense planting, moss, and soft acidic water is ideal. Breeding is typically triggered by high-protein feeding (such as baby brine shrimp or microworms) and a drop in temperature through a partial water change. The eggs are usually laid on the tank glass or plant leaves, and while the parents are not known to heavily prey on fry, providing cover is still advised for higher survival rates. With patience and good care, a colony can be built up over time.

Tank Recommendations for your Hastatus Corydoras

The hastatus corydora will only reach a maximum size of 3cm, which means they can actually be smaller than a full-grown shrimp. Keeping these fish in a smaller aquarium may actually be of benefit to them because a smaller system allows these nano fish to find food more easily compared to larger systems. A minimum tank volume of 30 litres would be great for a school of 6-10 hastatus Corydoras, which is a must-have requirement. Aquasoil or fine sand will make for a great substrate, along with the use of driftwood. Dense plant growth will make sure the fish feel more secure, thus keeping them out in the open more.

Suitable Tank Buddies

The hastatus Corydoras remain small and can easily be preyed on by fish. It is usually recommended to keep these fish alone as they can be very easily outcompeted; however similar similar-natured nano fish will be fine.

Usually Compatible

Shrimp, celestial pearl danios, emerald rasboras, emerald green rasbora, and similar nano fish species.

Sometimes Compatible

Guppies, rummy nose tetras, leopard danio, and other nano fish, which may not directly predate on the hastatus corydora but have a high risk of outcompeting them during feeding or just stressing the cories out.

Rarely Compatible

Dwarf cichlids, tiger barbs, goldfish, and other species that would readily prey on the hastatus corydoras

Feeding your Hastatus Corydoras

Feeding the Hastatus Corydoras is quite similar to feeding shrimp. These fish have extremely small mouths and will need incredibly small food. Fry powder, micro worms, or a crushed flake will make for a great feeding option, as these foods will sink but also spend a lot of time suspended in the water column, which is perfect for these fish to feed on.