You can add a large group to an established community tank as well. Males are more colourful and females are more plump. Moreover, it stimulates the male and female to advance and start breeding. The species takes on a diamond-like shape. Harlequin Rasbora care is quite easy no matter how much experience you have, which is great news if you’re a potential owner. First of all, you should prepare a spawning aquarium. They must be kept in soft, acidic water with a temperature of 28C (82.5F) to have any hope of breeding. Include dense plants like Cryptocoryne or species with broad leaves. The Cryptocoryne plants are native to the same region that Harlequin Rasboras are from. The minimum tank size for Harlequin Rasboras is 10 gallons. Try to give them a variety of different foods live brine shrimp, pellets, Spirulina, flakes etc. To encourage spawning, pair a young (9-12 months old) female Harlequin Rasbora with a two-year old male and offer live food items. They’re found in tanks…, The 15 Best Types Of Freshwater Aquarium Catfish, Clown Loach Care: Tank Size, Food, Lifespan, Tank Mates…, Indian Almond Leaves: Benefits For Your Aquarium, The 35 Best Low Light Aquarium Plants (Must-See), 35 Peaceful Community Fish For Your Tank (Updated List), Malaysian Trumpet Snail 101: Detailed Info & Care Tips. Cover most of the surface with floating plants so that the aquarium is quite dim. Harlequins are among the more difficult species to breed, however, spawning may be achieved if you provide the proper conditions. How to breed Harlequin Rasboras Part one They can be found in Thailand, Malaysia, Sumatra, and Singapore. Most will only get about 1.75 inches! The harlequin rasbora differs considerably from the other popular rasboras in the aquarium with respect to breeding. The above-mentioned conditions are beneficial for successful breeding to occur. Once she is joined by a male she will eject her eggs which will then stick to the underside of the leaf. You’ll also need to keep the tank in clean. However, we always recommend going with larger aquariums if you have the space in your home and budget. Usually, it can be found on some fins as well. There are no ailments that are specific to this species either. Darken the lighting if the aquarium is too bright. When you’re ready, introduce a group of Harlequin Rasboras. Breeding Harlequin Rasbora It is possible to breed harlequin rasbora in an aquarium, though they are a challenging species. The rasbora is easy enough to breed. We’ll get into those specifics in a bit. When they’re ready, the female will find a good leaf and call the male over. The tail, in particular, has a more exaggerated taper to accent the tail. The harlequin rasbora is a popular variety of fish that can be found worldwide. To help your fish reach their full potential in your care, you need to follow the basic guidelines below. However, that doesn’t mean that you can just toss them in any old tank! Breeding the Harlequin Rasbora For successful breeding, the water must be soft and acidic, as the fish are unlikely to spawn in hard, alkaline water. Breeding Harlequin Rasbora: Harlequin Rasbora is a bit tricky species to breed in an aquarium tank, but it is not impossible. Remove the adults from the aquarium. This combination can definitely work as long as you have the appropriate tank size. They need very soft water of 2dh and a ph of 5.5 and a temperature of 82F. But these are shoaling fish that do best in a larger group. The Harlequin rasbora is a pretty little fish that grows to reach a total length of around two inches, making it smaller than a fully grown betta fish. Author Note: We find that giving these fish a little extra room brings out their active side a bit more. Watching a school of them swimming around just never gets old! Size: 6cm Diet: These fish are omnivores and will accept most dry and live foods. We always recommend keeping a group of 8 to 10 Harlequin Rasboras together. They differ from other rasboras as they are egg layers as opposed to egg scatterers and must have a planted tank to breed. Rasbora heteromorpha generally spawns on the undersides of broad-leaved plants. Most will live until they’re about 6 years old, with good care and genetics determining if they will hit the upper end of that range. The shape starts at the dorsal fin and tapers to a fine point at the base of the tail. It’s caused by stress due to poor water conditions. Make sure that there are some broad-leaf plants in the tank. This will ensure that your Harlequin Rasboras don’t go through any unexpected water changes that can impact their health. The water in it should be very soft, with a temperature not lower than +28 ° C. Harlequin Rasboras are a beautiful freshwater fish that can be found in plenty of tanks all over the world. Like any other species, Harlequin Rasboras have their preferences and ideal conditions that help them thrive. Male and female fish have slight differences between their markings. Since they were discovered over 100 years ago, Harlequin Rasboras have been a hot commodity in the fish-keeping community. However, they can still get sick just like any other fish. These fish don’t get very large at all when fully grown. This occurs several times during the breeding process. Photo by Bswo5370. “Heteromorpha” comes from the fact that its shape differs slightly from that of other danios, with a … They are the perfect community fish. When she's not writing about fish you can find her hiking, swimming, and doing yoga. It’s concentrated mostly on the top of their bodies. A lot of people ask about the potential compatibility of Harlequin Rasboras and Betta fish. This includes hengels harlequins, harlequins, dwarf rasboras, ocellate dwarf rasboras and some others. Introduction To Harlequin rasbora. It stands out against the more muted tones of their scales. Start by adding two males and one female in the breeding tank. Do a 10% water change every 2 days and top up the methylene blue at night after all feeding has finished. To keep your fish happy, you need to keep the tank peaceful with smaller passive species. Breeding the Harlequin Rasbora To breed harlequin rasboras, first set up a separate breeding tank that includes broad-leafed cryptocoryne plants, the rasbora's favorite location for laying eggs in its natural environment. Meanwhile, the pelvic and anal fins are often transparent. The Harlequin Rasbora has the signature black triangle shape that starts at the dorsal fin and continues to the caudal fin. Add some methylene blue to the aquarium because the eggs and the fry are susceptible to infections. However, you do have to make sure that their food is safe to eat. Be careful with the water changes use aged water with exactly the same parameters as the aquarium. Usually, they habitat fresh blackwater streams and ponds. ... Also, try to find compatible bottom dwellers because this is the area that is rarely occupied by the Rasbora. They require pristine conditions to initiate the process. The water hardness should not be higher than 1.5 to 2.5 (4) DH when trying to breed this species. Well, it all comes down to the bold patch of black on their bodies. Select young specimens and condition them with live foods such as daphnia and mosquito larvae prior to the spawning attempt. Breeding of Harlequin Rasbora is difficult, but not impossible. Harlequin Rasbora breeding can be a bit tricky. The Harlequin … Many species are easy to breed. Larger tanks of 20 or 30 gallons will provide your fish with plenty of room to swim around and get comfortable. If you are interested in breeding harlequin rasboras, you should know that they are, unfortunately, one of the hardest species to breed in an aquarium. That means you won’t be getting just one of them!. Not only that, but the colors can change based on water conditions. Type locality is ‘Kuala Lumpur, Selangor, Malaysia’, but this species is usually quoted as being nativeto southern Thailand, Peninsular Malaysia, Singapore, and the Greater Sunda islands of Borneo and Sumatra. You can lower the chance of your fish getting sick by constantly maintaining water conditions. After spawning, remove the parents and keep the aquarium dark until the eggs hatch (after about 24 hours). For other rasboras use the above parameters. Harlequin Rasbora Breeding Breeding Harlequin rasbora is harder as compared to other species of fishes. Most species will take just dried food. Harlequin Rasbora breeding can be a bit tricky. The harlequin rasboras are notoriously difficult to breed in home aquariums, mainly due to the fact that they have very specific water requirements. When you’re preparing the tank, you don’t need to recreate the murkiness of their natural environment, but you do need to stick with the same water parameters. The rest of the body is free of any marks, creating a very staunch contrast that stands out. Despite the dark appearance, the water isn’t dirty. These fish are a joy to own and provide endless entertainment without even trying. Their small size makes them an easy target for larger fish. Feed this meal for about 2 weeks before transitioning to powdered fish food. Here are a few common species that do very well with these fish: As long as their tank mates are small and peaceful, feel free to experiment. Remember, these are schooling fish. Once the breeding process is over, you may have up to 300 eggs in several groups. This guide will go over everything you need to know about Harlequin Rasbora care. This size is perfect assuming you’re keeping a very small group of Harlequin Rasboras. Harlequin rasbora stays under the filter. In fact, they’re one of the most popular…, Clown Loaches are one of the most popular freshwater fish in the aquarium scene. Author Note: Add plants sparingly. There are several species in the genus Rasbora. Although popular, harlequins are difficult to breed. These fish are quite tolerant and have no problem dealing with slight fluctuations in temperature. Typically, the patch is slightly larger on male fish. This will incorporate those humic acids found in blackwater environments. To know the differences between the Hets and the Espei just look at the color markings. The fry grow quickly. With females, the shape is completely straight. We will focus our attention on R. Heteromorpha. The fish have a distinct light pink or orange hue. The use of peat in the filter or in a nylon sock will help too. Usually, smaller groups of up to 12 eggs are laid. Aquarium Source is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. 2 foot breeding tank with hood and low lighting. They will eat the fry. Now, onto the tank decor! The appearance of the Harlequin Rasbora is where these fish stand out most. Here are a couple of important parameters to stick to: In order to maintain consistency in your tank, we recommend performing regular water tests. This variance in potential lifespan is fairly significant compared to other freshwater species. Water parameters should match their original habitat. Out of all the species of rasboras, harlequins are the most popular among fish keepers. Temperature should be kept at 76F. The males chase the females around the aquarium. The male will embrace the female by placing his tail over her tail when he fertilises the eggs. Harlequin Rasboras (Trigonostigma heteromorpha) are one of the most popular schooling fish in the world. The breeding aquarium for the harlequin rasbora requires the existence of suitable plants such as the Cryptocoryne species. They will stay on the leaf and consume the egg sac for another 24 hours. Some of the more difficult to breed rasboras, such as the harlequin rasbora, will need reverse osmosis water to obtain the required softness needed to breed them. Process Of breeding Harlequin Rasbora. So it might be a good idea to practice with other rasboras first. It will only take about 6 months for these fish to reach full maturity. The Rasbora Hets also known as the Harlequin Rasboras, originate from Southern Thailand, Malaysia, Singapore, and Sumatra. Common Name: Harlequin Rasbora Scientific Name: Rasbora Heteromorpa (Duncker, 1904) Family: Cyprinidae . They won’t nip on the tails of other fish or show any signs of aggression. The Greek translation of Heteromorpha literally means differently shaped. They’re highly opportunistic and will eat pretty much anything they can. Harlequin Rasbora. After 1 week start feeding with brine shrimp and daphnia. Thanks to their shimmering color and iconic markings, they produce a beautiful show in aquariums of any size. Not only that, but they’re soft and leafy enough to swim through. Unlike other fish species, the females are the dominant-looking ones. Feed some nutrient-rich foods to your fish to prepare them for breeding. … It’s always a good idea to supplement dry food with live food every once in a while. As a rule in the evening we put 2 males and 3-4 females into a spawning tank planted with Cryptocoryne, seedbox or w… We always like to start with the substrate. Rasboras Breeding Level – Difficult Most rasbora species kept by aquarists are egg scatterers that distribute their eggs among plants and provide no parental care. For other rasboras raise the temperature to 80F. They’re larger and girthier than the males. Consider feeding your fish bloodworms, Daphnia, or brine shrimp for a good dose of protein. Thai populations seem to be restricted to the district of Narathiwat close to the border with Peninsular Malaysia. Another big difference between males and females is size. Test the water frequently and do water changes on a regular schedule. Some aquarists have been successful with smaller groups or even bonded pairs. They might stray off and do their own thing every once in a while. Check to see if your breed of rasbora has light sensitive eggs. So it might be a good idea to practice with other rasboras first. The choice is yours. As a good rule of thumb, you can keep a pair of Harlequin Rasboras for every gallon your tank will hold. The exact shades vary from specimen to specimen. As long as its nutritionally balanced, your fish should do just fine with it. Sometimes called Red Rasboras, these freshwater fish are endemic to Southeast Asia. The females will swim through or over the plants laying eggs with the male fertilising the eggs. Then, kick the temperature up to about 80 degrees Fahrenheit. We’re more than happy to help and look forward to hearing from you! First Breeding video of the year. To encourage spawning, you need to put them in a separate dimly-lit tank of soft water whose temperature should be 80° F (26° C), pH level at 5.3-6, and general hardness within 1.5-2.5 dGH. The Harlequin Rasbora (Rasbora heteromorpha) is an extremely desirable aquarium fish and no doubt the best known of all the rasboras.. Harlequin Rasboras belong to the Cyprinidae family of carps and was originally given the scientific name Rasbora heteromorpha but is now known to tropical fish keeping enthusiasts as Trigonostigma heteromorpha, or the harlequin fish. This species is loved by aquarists because of their ease of care and stunning appearance. Thanks to their small size, these fish don’t need a ton of room. This makes for a better viewing experience if you’re someone who likes to spend a lot of time watching their tank! In fact, it’s very low in minerals and has a slightly acidic pH balance. You want to have plenty of vegetation in the tank without overcrowding it. We cover tank mates, size, habitat, breeding, lifespan, and more! The best Harlequin Rasbora tank mates are small and non-aggressive (don’t consider anything else). Feed the fry infusoria. The female will swim in an upside down position, along the underside of a leaf. This makes things a lot easier for you when it comes to their diet. 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