In nature most species occur in large schools and as such do best when kept in a group in captivity. Cory cats lay around ten eggs in their nest. It usually has a yellow or … Have you heard the “popping” at the surface of your tank? A temperature in the mid-seventies is good with a p.H around about the neutral (7) mark. Check your water values immediately. There are also loads of undescribed species, many of which have been assigned a “C number” for identification purposes. The three stripe Corydoras (Corydoras trilineatus) are very attractive fish growing up to 5.5 cm long. Corydoras Trilineatus is one of the easier species to keep in a fish tank. Indeed, the motives of the latter can vary widely and sometimes resemble those of Corydoras julii. Temperature Range – 22 – 28°C pH Range – 6.0 – 7.0 Special Requirements - The main thing with Corys is to ensure that they do get food. It’s partly this tremendous diversity (along with their undeniably cute looks) that puts corys among the most popular fish in the hobby. Some of the newest lack names, sporting a “C” and a number instead. As such, try to keep your tank’s water hardness around 3-10 dH. The problem comes with getting the eggs to survive to hatching. However, they stress easily due to their tiny size, so take extra care. Aquarists love corydoras as they make perfect community tank additions. Corydoras frequent slow-moving waters in South America, everywhere between the Atlantic Ocean and the Andes. Both have a pale silvery-white body with a pattern of fine black spots on the flanks including a neat row along the midline of the fish bordered with white and running from behind the gill cover to the base of the tail. The fry survive on their yolk sac and then turn free-swimming. In fact, maintenance of the substrate becomes more of a primary concern if your tank contains a few corys, as they can develop nasty infections of the barbels if kept in dirty or otherwise unfavourable conditions. Remember to always ask a veterinarian for help regarding all of your pets. So, if you bought as fish as julii, it's almost certainly C. trilineatus from the upper Amazon. The “true” C. julii is quite rare in the hobby, as it’s not present in very many of the commercially fished Amazonian waters. So matching them with calm fish that prefer the middle or top of the aquarium works well. This species's stripes are thicker. A combination with bottom-dwelling dwarf cichlids such as Apistogramma is … Aquarists often mistake Julii corys for three-lined corys. Females are noticeably rounder and broader-bodied than males, especially when full of eggs. Care should therefore be exercised when handling or moving corys for any reason. C. trilneatus will thrive in a tank set up to replicate an Amazon biotope. Other than an occasional jaunt to the surface for a “bite” of air, corys stay on the bottom. Provided space isn’t an issue this rarely results in physical damage, though. Corys are part of the “armoured” catfish group, and instead of scales possess two rows of bony plates running along the flanks. There are currently over 180 described species of Corydoras (commonly shortened to “cory”), making it one of the most speciose of all South American fish genera. 7. Individuals of both species however can carry varied markings so small mixed (or suspected mixed) groups are to be avoided – Julii are rarely seen in the UK so getting people to believe I have both seen and kept them is difficult. Level of Care: Easy. Even then, some eggs will probably fungus, and these should be removed as soon as they’re spotted in order to prevent the fungus spreading. Some great options that sink well include: Corys also love worms of all kinds. Corydoras breed in home aquariums with little trouble. Many corys have black and silver patterns, but not quite as stunning as that seen on the Agassizi cory. You don’t want to see the water temperature drop out of the 72 – 78°F (22 – 26°C) range. Just make sure you don’t add any fish large enough to swallow them! Tankmates: Peaceful,… These are very healthy and active Cory Cats. You’ll likely end up with a wild-caught import you’ll need to fatten up a bit, as commercial-breeding isn’t quite up on this species just yet. If you see your corys performing this behavior frequently, consider adding air stones or extra plants to boost your tank’s oxygen levels. You can switch between live and frozen options to provide the best variety in their diet. Set up the breeding tank (18″ x 12″ x 12″ or similar is a good size), with either a bare bottom, sand or fine gravel substrate. Often you will see fish for sale as Corydoras julii but they are actually Corydoras trilineatus. I have seen and even purchased these fish under various labels – Trilineatus, Julii, False-Julii, Leopard, False Leopard… Not a good state of affairs for beginners as the Julii in particular has different needs and does better in a more ‘hot water’ aquarium where as Trilineatus will do well at 22-24c which is slightly below the average 24c community setup. The more nano-species rarely grow larger than 1 inch (2.5 cm) as adults. Social behavior: A peaceful, undemanding fish, ideal for community tanks and beginning aquariasts. Cory cats enjoy tropical water conditions. If you have a little more experience under your belt, the tailspot cory makes a challenging addition to a community tank. Feed a diet of frozen or live food such as bloodworm, whiteworm (sparingly because of the fat content) grindleworm, daphnia and a good quality flake or tablet food. However, if you slip on your water changes, you’ll start seeing problems. The wide-eyed catfish have an adorable appearance that endears them to aquarists of all ages. Water should be soft with a slightly acidic to neutral pH (6.5 to 7.0) and maintain a temperature of approximately 75 F (24 C). Overhanging plant cover keeps them safe from the sun and predators. They are best kept in groups. Scientific Name : Corydoras trilineatus. With particularly large eyes, these minuscule catfish have a large fanbase. Aquarists love the “winking” habit of these little catfish – a habit from their articulated eyes. Size: 6 cm Biotope: Along banks of slow-moving rivers with soft bottom material. The content of this website is not meant to be a substitute for professional medical advice. Cory cats inhabit the sandy bottoms of the streams and rivers while the tetras school overhead. For those that love fluttering activity at the bottom of their aquarium, you can’t go wrong with corydoras. The real C. julii will turn up from time to time as although it originates from the upper Parnaiba system in the lower Amazon drainage, it is found in the Rio Para where commercial fish collectors operate. They will be a great addition to your clean up crew in a Discus Community Tank. Called the Trilineatus Cory, this spotted Cory will be a great addition for your clean up crew! The fish is endemic to coastal river systems to the South of the Amazon River estuary in the state of Piauí, Maranhão, Para, and Amapa. A temperature of around 75°F and a pH of 6.5 should be fine. For every additional cory you add beyond that, add 3 extra gallons (7.5 l). These little bottom-dwellers have peaceful temperaments, they’re active, and they move in coordinated patterns. The true Corydoras julii is a lot rarer in the aquarium hobby, but we still love this beautiful lookalike. Cherry shrimp, Neocardina heteropoda work well. Scientific name: Corydoras trilineatus Common name: Leopard catfish, Three line cory Group: Catfishes Habitat: South America; Peru. They don’t harass freshwater shrimp or snails, pairing nicely in invertebrate tanks. pH Level – 6.0 – 8.0. Temperature range: 72 – 80 °F. For fans of nano aquariums, the pygmy cory fits the bill. The cooler temperature reflects the sudden rainfall expected in the wild. If you start to get above 20 ppm, you’ll see white patches developing around your corys’ barbels and mouths. As soon as you see the eggs, scoot the adults to their side of the partition to prevent cannibalization. It’s worth observing a couple of notes on general cory breeding at this point. In the wild, they enjoy a pH of 7.0 – 7.8. For those looking for a rarer member of the cory cat group, you can’t go wrong with Schwartz’s cory. They seem to be less susceptible to disease when kept over a thin layer of sand, rather than in a bare-bottomed setup. I have had a hand full of true C.Julii in the past and in numbers the two species are easy to differentiate. Some times all that is required is a change of water of the same temperature to set them of (Corydoras pygmaeus). Aquarists have even seen them joining in with some of the tetra schools in their native regions. This makes them easy to tell apart from the three-lined cory, which often gets mislabeled with the Julii name. Some of your best options include: Rocks make excellent decorations, but some decorations and rock caves present a unique problem for corys. Corys are not averse to regular water change and have a love for fine soil to "sniff". Due to their small size, cory cats work well in nano tanks and larger community aquariums. Size – 55 mm. Husbandry Information; Feeding: Sinking pellets and frozen bloodworm are ideal although all prepared foods that reach the bottom are accepted. Dramatic shifts in water conditions produce sudden shocks to cory cats. 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