HomeFreshwater aquarium fishCatfish & plecosBluespotted corydoras Bluespotted corydoras (Corydoras melanistius) Scientific name: Corydoras melanistius Regan, 1912 The Bluespotted corydoras (Corydoras melanistius) is a freshwater fish of the family Callichthyidae that grows to about 5.7 cm (2.2 in). It is easy to keep and peaceful, suits community aquariums and needs water at 22–26°C (72–79°F) and a pH of 6.0–8.0. Native range: South America, Coastal rivers of the Guianas. Bluespotted corydoras care at a glanceCare levelEasyTemperamentPeacefulCommunity tankGoodAdult size5.7 cm (2.2 in)Temperature22–26°C (72–79°F)pH6.0–8.0Hardness2–25 dGH (36–446 ppm)DietOmnivore. Accepts flakes. BiologyFeeds on worms, crustaceans, insects and plant matter.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCorydoras melanistiusFamilyCallichthyidae (Callichthyid armored catfishes)OrderSiluriformes (Catfish)ClassActinopterygii (Ray-finned fishes)Maximum length5.1EnvironmentFreshwater;; pH range: 6.0 - 8.0; dH range: 2 - 25 demersalClimateTropicalDistributionSouth America: Coastal rivers of the Guianas.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interest; aquarium: commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Fecundity is at least about 100 eggs) More catfish & plecosLeopard corydorasCorydoras juliiPeppered corydorasCorydoras paleatusCascarudoCallichthys callichthysReticulated corydorasCorydoras reticulatusGlass catfishKryptopterus bicirrhisWhiptail catfishFarlowella acusSee all catfish & plecos Can it live with...?Bluespotted corydoras and Black ghostBluespotted corydoras and Black sharkminnowBluespotted corydoras and Blackbarred limiaBluespotted corydoras and Bleeding-heart tetraBluespotted corydoras and Bloodfin tetraBluespotted corydoras and Brilliant rasboraBluespotted corydoras and Butterfly splitfinBluespotted corydoras and CascarudoBluespotted corydoras and Chinese suckerBluespotted corydoras and Clown barbBluespotted corydoras and Clown loachBluespotted corydoras and Clown rasboraBluespotted corydoras and Crescent bettaBluespotted corydoras and Dwarf botiaBluespotted corydoras and Dwarf rainbowfishBluespotted corydoras and Eel LoachBluespotted corydoras and Emerald catfishBluespotted corydoras and Forktail rainbowfishBluespotted corydoras and Gangetic leaffishBluespotted corydoras and Garnet tetraBluespotted corydoras and Glass catfishBluespotted corydoras and Glowlight tetraBluespotted corydoras and Goldeneye cichlidBluespotted corydoras and Head-and-taillight tetraBluespotted corydoras and Horseface loachBluespotted corydoras and Indian glassy fishBluespotted corydoras and Lake Kutubu rainbowfishBluespotted corydoras and Leopard corydorasBluespotted corydoras and MosquitofishBluespotted corydoras and Northern trout gudgeon SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0. Aquarium care parameters compiled, checked and converted to metric and imperial units by Guppies.za.net.Last updated 28 September 2026