The Corydoras pantanalensis, also known as the Pantanal Cory or C005, is a highly sought-after, peaceful freshwater catfish native to the Pantanal wetlands of Bolivia and Brazil. It is known for its social nature, suitability for community aquariums, and striking sexual dimorphism, where adult males develop a beautiful, iridescent spotted pattern during breeding season. Key Characteristics Size: Grows up to 3 to 4 inches (7.5 - 10 cm), making it one of the larger Corydorasspecies. Appearance: Features a shimmering golden-green or silver-gray body. Males in breeding condition display a distinct dark, net-like or reticulated pattern over their entire body and fins. Females are generally larger and broader with a more neutral base coloration. Behavior: Highly social and peaceful, making it an excellent community fish. It is best kept in groups of at least six individuals to encourage natural schooling behavior. Unlike many other Corydoras, this species swims in the open water column more frequently, not just the bottom. Habitat: Naturally found in clear, slow-moving, and often tannin-rich streams and floodplains with dense aquatic vegetation and soft, sandy or muddy substrates. Diet: An omnivore that should be fed a varied diet of high-quality sinking pellets, wafers, and live or frozen foods like bloodworms, brine shrimp, and daphnia. Aquarium Care Tank Requirements: A minimum of a 20-30 gallon tank is recommended for a group. Water Parameters: Temperature: 72° - 79° F (22° - 26° C) pH: 6.0 - 7.2 Hardness: 2 - 12 dKH (soft to medium hard water) Substrate: A soft sand or fine gravel substrate is essential to protect their delicate barbels, which can be damaged by rougher materials. Environment: Provide plenty of hiding spots using plants, driftwood, and caves. Good water flow and high oxygenation are beneficial, and regular water changes are crucial as they are sensitive to poor water quality. Compatibility Excellent tank mates include other non-aggressive species such as tetras, rasboras, peaceful barbs, and dwarf cichlids. Avoid large, aggressive, or predatory fish that might try to eat them.
