So unless you want to want to come home to an empty tank…. The fish are fed newly hatched brine shrimp, pellet foods, finely crushed quality flake foods, chopped frozen bloodworms and small live worms (Grindal worms, young black worms, and young white worms). For the whole list of foods and where to find it, I included a handy shopping cheat sheet below. From there, it’ll be left alone and it’ll hatch anywhere from 3 – 5 days. A dozen might sound like a lot of fish, but they’re like $2 per fish. They are tadpole-shaped, with a couple of long barbels. Skin and gill flukes are worm-like parasites that embed into your fish. Habrosus I’m, honestly, not sure how it gets confused. These fish have a silver coloration with a slim black horizontal stripe that runs down the sides of their body. They enjoy their numbers a little higher than most shoaling species, 8 is recommended. With proper feeding and regular water changes, they are nearing adult size by eight weeks. And it’s unbelievably sweet to see them all huddled up together resting! After a week or so, you’ll notice tiny little tadpole-like critters darting around under the plants. They don’t eat the eggs, nor will they eat the fry that hatch, making the aquarist’s job that much easier. Generally, you can treat them with a broad spectrum antibacterial regardless of the particular bacteria at hand. They’re usually seen along the banks or in surrounding flooded forest areas. and they don’t do great with fast water – which both species need. If they seem on the verge of spawning but aren’t thoroughly convinced yet, try a large 50% water change. They enjoy hiding among tree roots and marginal vegetation in small tributaries, creeks, and pools that flow out from the basin. And that’s only counting the eggs I watched them lay. To do it: A cooler water change (5.5 ° C) is recommended for fish (male and female) to spawn in the classic “t” position. Average adult size: 1.4 inches (3 cm) Read more about this fish in my article “Pygmy Cory – Detailed Guide: Care, Diet, and Breeding”. I’ll break everything down for you, but just know it doesn’t require any extra effort on your part in most cases. CPDs or Galaxy Rasbora (although they’re not a rasbora or a danio,) are small shoaling species. And they’re completely worth hunting down these rare gems. For extended periods of time. pH: 5.5 – 7.5dKH: 1 – 10Temp: 74 – 83F (24 – 28C), Size: 1.2″ (1 cm)Temperament: Peaceful shoaling fishSwimming: Mid to top. But they still go off and do their own thing when they feel safe. Your best bet would be adding boatloads of structure for them to perch on, hide under, and cling to. The eggs will hatch in about three days, and the larvae will move into the plants for several days. These guys don’t do great with bright lights or high flow. pH: 6 – 8dKH: 5 – 18Temp: 72 – 81 F (22 – 27 C), Size: 1.5″ (4 cm)Temperament: Peaceful, can be aggressive when spawningSwimming: All water. This makes them fantastic tank inhabitants! The biggest concern with cories is the bacteria levels in the substrate. This probably has something to do with developing and maintaining social order in the group, and no harm is done. Usually, one feed is a live food, and the other is a prepared food. Breeding corydoras catfish is not difficult, and in many instances they will breed on their own in a home aquarium. Low oxygen levels in the aquarium and stress caused by environmental conditions play the main factor in causing this disease. Corydoras hastatus gets to about an inch in size and can be kept in a small school in a 10 gallon or larger aquarium. Depending on which river you’re looking at and if you want to be super accurate about it, you might be able to find a rare species or two to toss in. As long as it moves out of the way, it’ll be safe. I do wish they’d eat the infertile eggs though. Foods like brine shrimp, vinegar eels, microworms, white worms, grindal worms, and daphnia are all readily eaten by them as well. By: Chewy EditorialPublished: June 7, 2011. It’ll take them anywhere from 3 – 6 months to be fully grown and start spawning themselves. After a brief rest, the pair will head off and repeat the process. Starting a biotope without getting totally overwhelmed is really the hardest part. Home » Species Care Sheets » Catfish » Pygmy Cory Care, Breeding, & Why You Need Them. These little ones aren’t strong enough to put up with a torrent of water for long. In fact, I would recommend you don’t get a heater unless you’re worried about drafts in the winter. Even still, they pack a colorful punch once settled in and make a beautiful, active display for the right tank. I think Ill stick with the pygmies. More than 95 percent of the known species in the genus have been kept at some point by at least a few hobbyists, and they have all been shown to be nearly perfect aquarium residents. Have a look at this video, not mine but shows how the sand is expelled through the gills. These guys are just a bit smaller with slightly different coloring. They have a common catfish appearance. They’ll gladly accept any food that fits in their mouth. They’re usually seen along the banks or in surrounding flooded forest areas. These fish are best kept in groups of eight or more, though 10 is better. Over the course of the spawning event, a female may lay up to 30 or so eggs. They enjoy hiding among tree roots and marginal vegetation in small tributaries, creeks, and pools that flow out from the basin. At this size, they are saleable, or I can move them to other aquariums. The programmed ones will get too hot for them. Tapeworms are small rice-like worms that can drop out of your fish’s anus with or without passing poop with it. I’ve never heard of them eating shrimplets unless they’re dead or insanely slow. I’ve never even seen a torn fin in a group. Making the aquarist’s job easy again, the fry will eat the same foods as the adults, so special feeding is not required. The pygmy cory (Corydoras pygmaeus) is one of those cories that would be happy even in the smallest of aquaria. If you’re looking to get the most natural and rewarding behavior, I suggest low light plants that can be grown in sand. For that reason I don’t suggest bare bottom. Neither of them are pygmy cories. The pygmy corydoras lays approximately 100 eggs at a time. Many species are seasonal spawners, breeding during the wet season in their native countries. Seriously though, my pygmy tank has been my favorite tank of all time. No one seems to be entirely sure just how many eggs they can lay, but I’ve counted 75 between three breeding females over the course of a week. This is flooded forests area. But if you’re buying them, be aware that quite a few nasties can pop up over the course of the first few months and it’s super important to put them through a proper quarantine period. They’re a peaceful shoaling fish that need to be kept in groups of six or more and the only known wild population exists within a 200-meter range in Brazil. Difficulty: EasyGrowth: FastTemperature:  64 – 86F (18 – 30C), pH: 5.0 – 8.0 Hardness:  2 – 25 dKH Placement: Floating. In fact, it is probably one of the few families of fishes that doesn’t have a “black sheep” species that would be better off if left in the wild. To house them, an aquarium of 18" x 12" x 10"/12" deep (45 cm x 30 cm x 20/25cm) would be a suitable size for a breeding set up. Which has been a huge hit with my cory colony. Find out when to bring your new kitten to the veterinarian, how to prepare for the vet visit, and what... Grooming a dog with clippers is no easy feat. Some advanced aquarists even specialize just with cories. They don’t predate on their fry or eggs. She’ll eventually pick a spot and a male and they’ll form a T-position. Corydoras hastatus, on the other hand, has no line. They can be kept on gravel but use a fine grade & make sure it's smooth with no sharp edges. The fry look nothing like their parents. The aquarium is filtered with a sponge filter with the air supply on full. In spite of this, to give the fry a good start, I’ll add Mikroworms to the fish’s diet for a few weeks. Pygmy cories do better with some plants. The eggs will be placed individually here and there on surfaces, so spawning mops are pointless with corys. They are so much more fun to watch in large groups and their behavior is more natural. Shoaling fish are fish that swim together in groups when threatened. The Maderia river is a sediment-rich white water river. If you want suggestions on lights, filters, or air pumps, I’ve included my favorites below for you. If you thought the adults were small, just wait until you see the offspring! ). They do, however, need good water circulation. You can think of the lambchop as a smaller cousin to the harlequin rasbora (Trigonostigma heteromorpha) they look and act similarly and their care requirements are about the same. An adult female is probably at least three times the weight of an adult male. If your tank was set up properly and fully mature, they should have no issue finding food. This isn’t a complete list, but I hope it inspires you to look into some other awesome and unusual choices for your aquarium. Pure and simple revenge? You’ll need to feed them lots of high-quality foods to get them into spawning condition. The pygmy cory (corydoras pygmaeus) is the smallest of all the corydoras species. One thing to remember when feeding pygmaeus corys is they have very small mouths. The female will clean a spot on a leaf of the Java fern, the glass of the aquarium or even the sponge filter with her mouth, then carefully deposit the egg on that cleaned spot. Unlike many other cories, the pygmies love to swim in mid-water. Source. Guppy grass, driftwood, seed pods, leaf litter, and other structures will be your best friend. 2. Pygmy Cory Care, Breeding, & Why You Need Them, Emerald Dwarf Rasboras (Microrasbora erythromicron), Celestial Pearl Danio (Danio margaritatus), Telling The Difference Between Dwarf Cory Species, Redtail Catfish Care: No, You Shouldn’t Own One, The fish fauna of mountain streams in the Guanshan National Nature Reserve, Jiangxi, China, The fish community of a high mountain stream in Taiwan and its relation to dam design, Keeping fish in inappropriate water parameters, Cottony growths on body, fins, eyes, and/or gills, Prior untreated infection (bacterial, parasitic, etc. This strategy should help minimize overlapping rest areas (like the bottom) where they’re highly likely to disturb each other. But that doesn’t mean you should feed them just any food. Spawning takes place over a couple of days, and it occurs regularly throughout the year, about every four to six weeks if conditions are right. It is also an endearing quality that most hobbyists can appreciate and is one of the qualities that keep them in demand. Sexing: When viewed from above the females are fuller-bodied and more rounded than males and often slightly larger. All other fins are clear, so the fish often seem to be just suspended in the water. Another big thing to note is that pygmy corydoras have barbels that can get damaged by sharp substrate or bacteria. So you can leave them all in the same tank to be one big, happy, colony! Be diligent about cleaning up leftovers, otherwise you may start to see barbel infections. Once that tank is set up, you want to increase their feedings and feed them items like frozen bloodworms. 3 – 4 is probably sufficient for these guys, but more is always better. Due to the small size of the segments these worms break into, it can be incredibly hard to diagnose in fish. The cycle seems to last about a week, at which point I do a 10% water change and they’re back at it. 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