Catfish are among the most popular choices for home aquariums due to their diverse species and unique behaviors. From surface feeders to bottom dwellers, catfish add variety and functionality to any tank. In this guide, we'll explore 11 catfish species that are usually kept in aquariums, providing detailed information on each one.
1. Bristlenose Catfish
The Bristlenose Catfish, also known as the Bristlenose Pleco, is a smaller species of plecostomus that grows up to 5 inches. Unlike other plecos, this catfish does not outgrow home aquariums, making it a favorite for many hobbyists. Its distinctive bristles around the head are most prominent in males. Bristlenose catfish are excellent algae cleaners and thrive on sinking pellets and algae wafers, but they also enjoy the occasional fresh vegetable treat.
2. Pictus Catfish
The Pictus Catfish is a popular choice among fishkeepers due to its sleek, active nature. Growing up to 5-6 inches, these fish are best suited for larger tanks where they have plenty of swimming space. Being nocturnal, the Pictus Catfish prefers to be fed in the evening. Their swift swimming and social behavior make them a lively addition to community tanks with similarly sized, non-aggressive species.
3. Upside-Down Catfish
The Upside-Down Catfish is unique due to its inverted swimming position, usually floating near the water's surface. This unusual behavior makes it a fascinating species for any tank. Growing up to 4 inches, these catfish are well-adapted for surface feeding but can also feed at the bottom of the tank. They are peaceful fish that do well in community aquariums and are particularly easy to care for.
4. Panda Cory
The Panda Cory is a small, peaceful catfish named for its distinctive black and white markings, resembling a panda. It grows up to 2 inches and is best kept in small groups of at least five to ensure their well-being. These fish are ideal for beginners due to their hardy nature, but they do require clean water and hiding spots during the day as they are nocturnal feeders.
5. Bandit Cory
The Bandit Cory is known for the black "mask" across its face, making it easily recognizable. Like other Corydoras, this species thrives in groups and prefers the bottom of the tank. Growing up to 2 inches, these catfish are peaceful, making them suitable for community aquariums. They are nocturnal and will feed on sinking pellets or algae wafers during the night.
6. Suckermouth Catfish (Plecostomus)
The Plecostomus, or Suckermouth Catfish, is a well-known algae eater in aquariums. Depending on the species, Plecos can range in size from a few inches to up to 2 feet in length. Common Plecos, for example, can grow quite large, while smaller varieties like the Bristlenose Pleco are better suited for home aquariums. Plecostomus catfish use their specialized mouths to clean tank surfaces, making them valuable for tank maintenance.
7. Julii Cory
The Julii Cory is another popular Corydoras species, known for its delicate spotted pattern. This species is often confused with the Three Stripe Cory, but the Julii Cory has a more distinct dotted pattern. Growing up to 2.5 inches, they are peaceful and thrive in groups. Julii Corys are active at night, so feeding them with sinking food in the evening is best.
8. Three Stripe Cory
The Three Stripe Cory, also known as the Leopard Cory, is decorated with black lines across its iridescent body. This species grows up to 2.5 inches and requires pristine water quality to thrive. Like other Corydoras, it prefers to be kept in small groups and feeds on sinking pellets or algae wafers.
9. Bronze Cory
The Bronze Cory, also known as the Green Cory, is characterized by its metallic brown or green hue. These catfish are easy to care for and are often available in their albino form. Growing up to 2.5 inches, they thrive in groups and enjoy hiding spots in the tank. They are also bottom feeders, preferring sinking food.
10. Pepper Cory
The Pepper Cory is known for its mottled black or brown body, giving it a camouflaged appearance. This species grows up to 3 inches and is peaceful, making it perfect for community tanks. Like other Corydoras, they are bottom dwellers and thrive in small schools. Regular water changes and clean substrates are essential to keep them healthy.
11. Skunk Cory
The Skunk Cory is named for the black stripe running along its back, resembling a skunk's markings. These catfish grow up to 2 inches and, like other Cory species, they are social and do best in groups. They prefer tanks with plenty of hiding spots and clean water conditions. The Skunk Cory is ideal for smaller tanks and peaceful community setups.
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