Catfish are bottom-dwelling fish named for their whisker-like barbels that help them sense food. They come in many types, from small species like Corydoras and Plecos to larger ones like the Mekong catfish. Known for their adaptability, catfish are hardy fish that can live in a variety of freshwater conditions.



Tank Conditions

Catfish prefer well-oxygenated freshwater with moderate current. The ideal tank temperature varies by species, but generally ranges from 22°C to 28°C (72°F–82°F). They love hiding spots, so include caves, driftwood, or plants in their tank. A soft sandy substrate is best, as many catfish like to dig and search for food along the bottom.

Tank Mates

Most catfish are peaceful and can live with community fish like tetras, guppies, or mollies. Avoid aggressive or large predatory fish that may harm them. Bottom-dwelling species may compete for space, so provide enough hiding places for all fish.

Feeding

Catfish are omnivores and bottom feeders. Their diet can include:

Sinking pellets or wafers

Live or frozen food like bloodworms and brine shrimp

Vegetables such as zucchini or cucumber slices for herbivorous species

Feed them once or twice a day, making sure they can finish the food within a few minutes to prevent water pollution.

Diseases

Catfish are generally hardy but can suffer from:

Ich (white spot disease) – small white spots on the body

Fin rot – fraying or rotting fins due to poor water quality

Fungal infections – white cotton-like patches on skin or fins

Maintaining clean water, proper tank conditions, and a balanced diet helps prevent most diseases. Quarantining new fish before adding them to the main tank is also recommended.