Black Diamond Hoplisoma
Remarks: The black diamond Hoplisoma, Hoplisoma sp. CW049, are a rare, medium-sized Corydoradinae from the border of Colombia and Brazil near Leticia. They have white or tan bodies with a black mask over the eyes and a large black diamond spot that runs from their lateral line above the pectoral fin into the dorsal fin. They have proven to be fairly fragile so care should be taken to ensure their water is pristine with frequent, small water changes. Black diamond Hoplisoma were previously classified as Corydoras sp. CW049, but were reclassified as Hoplisoma sp. CW049 upon publication of a phylogenomic analysis in 2024 that reclassified many species in the Corydoradinae subfamily.
Corydoradinae are small, peaceful catfish that are active shoalers and will stay near conspecifics, making for a lovely sight. They feed by searching through sand with their barbels, making such a substrate necessary for their long-term health. Gravel substrates tend to be abrasive and damage the barbels, leading to infections and an inability to find food.
While these friendly catfish are willing to swim with other species of Corydoradinae different from their own, this does not provide the same social need as being kept with members of their own species. Because of this, it is highly recommended to keep at least six of each species of Corydoradinae present in the aquarium and only mix species if one has the space to keep at least six of each.
Corydoradinae are often looked at as "scavengers," but they should be treated in a similar fashion as the rest of your fish. They are omnivores and require a mixed diet. Sinking prepared foods are readily accepted, as are frozen and live foods such as brine shrimp, blackworms, and bloodworms.
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Description
Remarks: The black diamond Hoplisoma, Hoplisoma sp. CW049, are a rare, medium-sized Corydoradinae from the border of Colombia and Brazil near Leticia. They have white or tan bodies with a black mask over the eyes and a large black diamond spot that runs from their lateral line above the pectoral fin into the dorsal fin. They have proven to be fairly fragile so care should be taken to ensure their water is pristine with frequent, small water changes. Black diamond Hoplisoma were previously classified as Corydoras sp. CW049, but were reclassified as Hoplisoma sp. CW049 upon publication of a phylogenomic analysis in 2024 that reclassified many species in the Corydoradinae subfamily.
Corydoradinae are small, peaceful catfish that are active shoalers and will stay near conspecifics, making for a lovely sight. They feed by searching through sand with their barbels, making such a substrate necessary for their long-term health. Gravel substrates tend to be abrasive and damage the barbels, leading to infections and an inability to find food.
While these friendly catfish are willing to swim with other species of Corydoradinae different from their own, this does not provide the same social need as being kept with members of their own species. Because of this, it is highly recommended to keep at least six of each species of Corydoradinae present in the aquarium and only mix species if one has the space to keep at least six of each.
Corydoradinae are often looked at as "scavengers," but they should be treated in a similar fashion as the rest of your fish. They are omnivores and require a mixed diet. Sinking prepared foods are readily accepted, as are frozen and live foods such as brine shrimp, blackworms, and bloodworms.
