The Harlequin Rasbora (Trigonostigma heteromorpha) makes an absolutely captivating addition to any aquarium. You'll need a heater to ensure the temperature doesn't fluctuate too much. When spawning is complete, remove the breeding stock from the aquarium, as they will consume the fry once they hatch. Regarding tank size, at least a 10-gallon tank is necessary. . A slightly warmer temperature (around 80F) will . Here's what I found out after doing some research: The best temperature for cherry shrimps is 72 degrees Fahrenheit (22 degrees Celcius). Temperature: 73 - 82 F (23 - 28 C) Lifespan: 3-5 years. Here are a couple of important parameters to stick to: Water temperature: 72F to 80F (74F should be your target) pH levels: 6.0 to 7.8 (6.5 is best) Water hardness: 2 - 15 KH (the lower is the better) In order to maintain consistency in your tank, we recommend performing regular water tests. What is the best substrate for a harlequin rasbora? Water Conditions for Harlequin Rasboras and Bettas It is easy to set a tank and make a perfect habitat for these two kinds because they are a great match. May 1, 2013. It is recommended to only place them in tropical tanks regardless of their low-temperature tolerance. Black Harlequin Rasbora. . However, we've had a few warm days here in the UK and the ambient temperature is making the water temp fluctuate between 26-27C. Therefore, the water of the streams where Rasbora Harlequin live ranges from a pH of 5 to 7 with a dGH range from 5 to 12. These highly popular fish are known for their beautiful colors and peaceful demeanor. Rasbora is a peaceful freshwater inhabitant belonging to the family Cyprinidae. Thus, temperatures should be between 73 and 82 degrees Fahrenheit and pH levels ranging between 6.0 and 7.5. The mild nature of the Harlequin Rasbora makes it a great community fish. Water pH: 6.0 to 7.5. The Purple Harlequin Rasbora is easy in care as long as it has stable water parameters with good water quality. To do this, you can put on different kinds of water floating plants. As long as the water temperature is between 74 and 82 Fahrenheit, the pH between 6.0 and 7.0, and the water moderately soft, this fish will do well. Rasboras prefer a temperature of about 70-82 F. To maintain the temperature of such a high range, a heater must be installed and used throughout the day. In water temperatures of about 80 degrees Fahrenheit, the eggs will hatch in approximately 24 hours. A heater installation is also quite important to maintain the water temperature between 72F and 82F considering harlequin rasbora are tropical fish and won't survive in water with the temperature below 70F. . The quiet Harlequin Rasbora grows to 1.5 inches and is best kept in small groups. . #1 I've sort of got my heart set on a group of Harlequin Rasboras for my new 30 gallon community setup. Tank Size: 10 gallons. Colors, Patterns, Fins, and Sex Differences They can survive at a pH range of 6.0 to 7.5. Size: 4-5 cm / 1.8-2 inches. The action is continued for about two hours and during this period somewhere between 30 and 80 eggs should be laid on the leaves of the plants. The base color of the fish is a deep blue, which mimics the night sky. What size should the aquarium be? When harlequin rasbora breeding they become rather demanding as for their pair selection and the surrounding environment. Their natural habitat is covered with dense vegetation with dark rocky and sand substrates. Dark aquascaping and subdued light suit it best. These requirements are different if you want to breed Rasboras, as they generally require a higher temperature and . Flake and freeze-dried foods will provide a sufficient diet . pH: . Harlequin Rasbora gets along well with all peaceful fish. A Rasbora's Natural Habitat. It is a good idea to invest in a quality filter for their tank. The fish breeds in long tanks where the water layer shouldn't exceed 20 cm (8 in); at dim light and in soft water with the temperature 24-28C (75,2-82,4 F). . For this reason, they enjoy warmer water temperatures. Common name: Harlequin Rasbora, Red Rasbora, Harlequin fish Scientific name: Trigonostigma heteromorpha Synonyms: Rasboraheteromorpha Size: 5 cm / 1.75 in pH: 5.0- 7.0 Temperature: 22 to 25C (73 to 82 F), tolerates up to 28C (82.4F). Harlequin rasbora is a fish breed having metallic colour and it is easy to maintain. Water Requirements for Rasboras For these fish, pH should be between 6.8 and 7.8, alkalinity between 3 and 8 dkH (50 ppm to 140 ppm), and temperature between 75 and 80 F. If the aquarium is kept in rooms below 75, use an Aqueon Aquarium Heater to maintain the correct temperature. The Southeastern Asian waters that Rasboras are native to have a temperature of around 75 degrees Fahrenheit to approximately 80 degrees Fahrenheit and a pH level between 6.8 and 7.8. Lifespan: 5 - 8 years. 7. (50 ppm to 140 ppm), and temperature between 75 and 80 F. If the aquarium is kept in rooms below 75, use an Aqueon Aquarium Heater to maintain the correct temperature. Black Harlequin Rasbora. Then put in their favorite plants - Cryptocoryne. Lambchop rasboras must be kept in groups of six or more to be happy and healthy. That makes this species a great fish for small tanks (more on that later). Also known as the Celestial Pearl Danio, the Galaxy Rasboras truly lives up to its name. Since their introduction in the early 1900s, the harlequin rasbora has become the most common species of . Therefore, the temperature of the water should be 72-81 F (22-27 C). It requires very soft acidic water. Harlequin Rasbora (Rasbora heteromorpha) But, Harlequin rasboras, like neon tetras, prefer to swim in dense schools. They live in a variety of streams, rivers, and swamp forests that are similar to the blackwater rivers of South America. Harlequin Rasboras are a shoaling fish that you should keep in groups of at least eight individuals. Water Type for Harlequin Rasbora . For breeding purposes, the temperature needs to be warmer, at about 82.4F (28C). Harlequins can tolerate a variety of water temperatures from as low as 20C to 32C. They shimmer in the light, giving that cosmic look the fish is known for. This species is very similar to the chili rasbora but is generally less colorful. They do best in water temperatures that range from 73 degrees Fahrenheit to 83 degrees Fahrenheit. These hardy fish are known to live between three and five years in a fish tank setting. The rasbora fish group consists of 84 schooling freshwater fish in the family Cyprinidae. The main factors of a fish getting sick are the quality of water, stress, the temperature of the . The Harlequin Rasbora should be kept in schools of 8-10 individuals and housed with other small, peaceful fish. They only grow to 5cm/2" as adults but do enjoy being in shoals, so it's worth thinking of a tank no less than 60cm/2' long, with at least 12 Harlequins. 5 to 8 years. Rasbora einthovenii, Brevibora dorsiocellata and Pangio spp. Harlequin Rasbora native habitat, distribution, behavior & aquarium compatibility. Hardness: 1 - 10 N Lifespan: 5-6 years The Harlequin rasbora is a common and popular aquarium fish that can be found in most well stocked fish stores. The infected fish needs aquarium salt, chlorine-free tank water, increased water temperature, and over-the-counter medication like API Fungus Cure. The temperature range of the harlequin rasbora is usually cited as 22 C to 27 C (72 F to 81 F) (for example, Walker, 1971, p. 101) but the fish is capable of living in temperatures from 21 C to 28 C, and indeed usually breeds at around 28 C (82.4 F). This fascinating and vibrant colored fish is about 1.5 to 2 inches long and is suitable for small to a mid-size aquarium. As soon as I got them into the tank, the water went up to 80F. Unfortunately they are one of the harder species to breed in an aquarium, but it is possible. Rasboras are known for being hardy and beautiful. They like water with a temperature range of between 72 and 80 degrees Fahrenheit and a pH of 6.0-7.8. . Fish guide for Harlequin Rasbora, Trigonostigma heteromorpha, Red Rasbora profile with fish pictures, description and information, fish care, diet, habitat and fish diseases, compatibility and keeping the cyprinid fish aquarium, Black Harlequin Rasbora, Blue Harlequin Rasbora, Gold Harlequin Rasbora . Most of the harlequin rasboras are popular aquarium fish and fit well in medium-sized tanks. In case of Harlequin Rasbora, it is said that a 5-liter water capacity is enough for one fish if you want to ensure a proper free space for them. Harlequin Rasboras are attractive, peaceful, lively and relatively hardy, making them suitable for a well-planted community aquarium with other small temperate fish or in a species only aquascaped nano aquarium. The pH-value should be kept around 6.0 and the temperature at 82 Deg F / 28 Deg C . So, in a 10 liter tank . Harlequin rasbora belongs to the Cyprinidae family. In captivity, Harlequin Rasboras have been bred to withstand a much more varied temperature of around 72F to 81F, and 6.0 to 7.8 pH. Does best in large groups. Temperature. Behavior and the temperament: Temperature: 21 - 28 C. . These fish are among the most popular rasbora species kept in home aquariums. Breaking up that blue are several pearl-colored spots. These small fish are fairly hardy and adapt to most aquarium conditions. 0. Harlequin Rasboras are small and water cleanliness is important to their health and happiness. They are omnivores and are egg-laying fishes. They need also need a good filtration system. Half of the posterior part of the Rasboras body displays a rough triangular marking in a black shade. More Information. Most will only get about 1.75 inches! Right off the bat, this is going to mean that they're going to enjoy the same water conditions, such as pH and water temperature. Harlequin Rasbora General Background The Harlequin Rasbora is a small cichlid fish native to the rivers and streams of Southeast Asia. Therefore direct sunlight shouldn't enter the aquarium. Place a hang- on water filter to keep it clean and suitable for the fishes. Its body is mostly a bright pinkish color, but it is known for the black or dark purple mark on its sides. GH: 1.0 - 12 dGH. Wild harlequin rasboras live in very soft water of below 3 dH. Harlequin is a very popular species used in home aquariums. On: July 7, 2022. A variant of the Harlequin Rasbora. Harlequin Rasboras are tropical fish that belong to the Cyprinidae family. The first thing to consider here is that Rasboras require the water temperature to be between 73 and 82 F (23 to 28 C . Water temperature: 75 to 85 degrees Fahrenheit; pH levels: 6.2 to 7.0; Additional requirements: these fish are . . There is some debate as to the optimal temperature range, but the Harlequins will certainly be happy within the 72-82 degrees Fahrenheit range (22-28 degrees centigrade). . Angelfish They seemed happy and were very active, and ate well. Harlequin Rasbora Tank Conditions The ideal setup for these fish is something that has a natural look to it that has a stable temperature and parameters. Ideal water conditions include a temperature from 72 to 78F and a PH from 6-7.8 so fairly typical of the conditions needed for your Blue Acara and other Cichlids from . I recommend a temperature setting of 24 degrees C (75 degrees F) for a mixed tank including this fish Although the water in its native habitat tends to be soft, acidic and low in salts, it is able to . Do harlequin rasbora need heater? Rasbora is an easy to care omnivorous fish. This allows the temperature withinthe bag to adjust to the same as your tank and will reduce temperature shock onthe fish . However, bred harlequin rasboras now cope very well in neutral or even slightly hard water. Water Temperature: 73F to 82F. Like all rasboras and danios, this fish is completely peaceful and totally safe to keep with other fish (as long as the other fish are peaceful as well), snails, shrimp, and live plants. The water hardness should not be higher than 1.5 to 2.5 (4) DH when trying to breed this species. [Total: 0 Average: 0] Breeding Harlequin Rasboras. The Harlequin Rasbora is a tropical fish and temperatures of between 21 degrees C (70 degrees F) and 28 degrees C (85 degrees F) are suitable. They are among the most popular schooling fish across the globe. 28 degrees centigrade is both their upper limit, and the temperature at which they usually breed. Harlequin Rasbora / Glass Catfish Breeding 4/29/14 Hi, I wanted to ask you what would you recommend for breeding this species. The water temperature for the pond where a harlequin fish lives must be between 21 and 28 c; The pH of the fish tank should vary between 5.0 and 7.5, while the hardness must present levels of 18 to 215 ppm. Like their natural tropical lowland water habitat, rasbora prefers soft and near-neutral pH of 5.0 to 7.0, slightly warm water 72F - 79F. The max size of the Harlequin Rasbora is about 2 inches in length when in captivity. What Plants Do Harlequin Rasbora Fish Like? The clear larvae stick to the leaf for 12-24 . Temperature: 72 - 81F (22 - 27C) pH: 5.0 - 7.5. Harlequin rasbora: Keeping conditions They were found in Thailand, Singapore, Malaysia, and Sumatra. Put soft water in the tank, aim to stay within 1.5 to 2.5 dkH of their preferred hardness of 7. Click For Best Price. One Response to "Trigonostigma heteromorpha - Harlequin (Rasbora heteromorpha)" . Two died today. The temperature of the water should be varying in between the range of 74-to78 F (12 to 26 C). Depth Preference: Mid dweller. These fish don't get very large at all when fully grown. Even still, that's on the higher end of the size spectrum. The pH should be approximately 7.2, and the water hardness level is relatively soft. Rasbora Tank Conditions. Temperature: 72 - 79 F (22 - 26 C) pH: 6.0 - 7.0; KH: 2 - 10 dKH; Minimum tank size: 10 gallons; CARE GUIDELINES: It mainly inhabits streams and small bodies of water, most of which are located in the unique peat swamp forests. Comfortable water temperature for them is +25 C. Water inhabitants like diffused light. depending on the temperature. These heaters are able to moderate and control the tank temperature easily, and will alert you if the parameters change significantly, which is important for anyone keeping harlequin rasboras. The Harlequin Rasbora likes to be in a school and about 10 gallons is enough for one and if in a small group you need to consider a tank of about 30 gallons to keep them happy. Temperature: 22-27 C (71.5-80.5 F) Maximum Size: 1.5 inches (4cm) The Harlequin Rasbora (originally named Rasbora heteromorpha, but recently changed to Trigonostigma heteromorpha) is a small fish native to Southeast Asia. Tank Size: 10 gallons. The water that you are going to use in your Harlequin Rasbora tank must meet the following requirements. Harlequin rasbora prefers to be with their own species again, and will also thrive in a community tank with other small fish. . Of course, it is possible to breed them in the main tank but Harlequin Rasbora may eat their eggs and fry. pH And hardness A pH of range of 5.5 to 7 is perfect for them to thrive. The water temperature mustn't be decrease than +25 C. If this aquatic inhabitant stays in chilly water for a long time beneath +20 C, then fungal illnesses can have an effect on him. . They are native to Asia and most often they are seen in Singapore, Thailand, and Malaysia. Like other rasboras, these fish do best in groups because they prefer to school together. You need to keep them in 10-gallon fish tanks or something larger. The Harlequin rasbora's life expectancy oscillates between five and six years of age. Synonyms: Rasbora espei, Rasbora heteromorpha espei. Image Credit: Anna olliva, Shutterstock How Much Do Harlequin Rasboras Cost? The fishes need very warm temperatures to breed, between 77 - 83 F (25 - 28 C), so heat it. Also, unless the pH level of the water is around 6.0 - 6.5, you will not see any eggs. 1. Trigonostigma heteromorpha, or Harlequin Rasbora, is a very nice school fish for the community aquarium. Low pH. Breeding Harlequin Rasboras The body of the Harlequin Rasbora species has a lozenge shape, and from head to caudal peduncle, the basal shade is orange-pink. Always remember to do at least 25 to 50 water replacement once every month or 10 percent changes every week. The ideal temperature range for them is between 70 to 75 degrees Fahrenheit. A pH range of 6.0-7.5 works well, combined with a hardness of less than 12dH. Temperature: 72-81F: pH: 4.5-7.8 pH, depending heavily on the variety of rasbora: Hardness: 2-15 dGH: . < They should handle 80 F with no problem.> I plan to get 4 more . The first to die had two tiny white specs on his fins, so I thought it might be ick and immediately started introducing a low concentration of aquarium salt to the tank over the day . When it comes to water temperature you can keep it between 72 and 80 F and the PH level of the water between 6,5 and 7,5 so the middle of 7,0 is ideal for both kinds. Harlequin Rasbora prefers slightly warmer water based on the habitat that it is from. I just bought 5 harlequin rasbora for my new aquarium 3 days ago at petco. My question is will this temperature be ok for the Harlequin Rasboras already in there? The eggs will hatch approximately 18 hours later supplied that the water is kept at a temperature of 80 F. Fish Name : Harlequin. . The most popular and common type of Rasbora to have in a home aquarium is known as the Harlequin Rasbora or the red Rasbora. This fish originates in Southeast Asia, mainly from Thailand, Sumatra, Singapore, and Malaysia. Harlequin Rasbora Care Guide & Species Profile You must prepare for a power backup in case of electricity cut off. When kept solitarily, harlequin rasboras are shy little fish, preferring to hide among the items in the tank. As always thorough research is essential when choosing tankmates and its small adult size must be a consideration. Wild-caught fish prefer a pH of 5.0 to 7.0 and KH between 1and 3 (20 ppm to 50 ppm). Harlequins need space to swim around and prefer saying in a group. The ideal water temperature for bettas is 78.0 Fahrenheit, and rasboras like a range of 73.0 to 82.0 Fahrenheit, so both parties are compatible Temperature: 72 - 79 F (22 - 26 C) The Harlequin rasboras are native to South-eastern Asia. Within these conditions the aquarist should introduce a small group . It would be best if you emulated those temperatures in a tank setting. Harlequin rasboras should not be demanding in care, but when you don't observe the easy guidelines of their upkeep, then it may possibly grow to be sick. Breeding: The Rasbora is a hard species to breed. The Harlequin Rasbora, Trigonostigma Heteromorpha, is a tropical freshwater fish that belongs to the family Cyprinidae. You should be able to find a healthy stock of harlequins at your local pet store. Fluctuations are the bane of most fish, even though the conditions may be tolerable. The appropriate temperature for them should be between 22 0 C - 26 0 C. The temperature should be 71 to 80 degrees Fahrenheit. Harlequin, lambchop and a few other species . Harlequin rasboras can survive in a waterbody with wide-ranging characteristics; they will be fine in water with extremely soft to a moderately hard degree of hardness - 2 - 15dH. A single harlequin rasbora costs $3.50-$4.50 on average, while a school of six costs $19-$26. Common Names: Harlequin Rasbora, Red Rasbora, Harlequin Fish Scientific Name: Trigonostigma heteromorpha Family: Cyprinidae Minimum Tank Size: 20 Gallons Care Level: Easy, but sensitive to water parameters Temperament: Peaceful Max Size: 2 inches Temperature: 72-80 F pH: 5.5-7.0 Tank Level: Middle to Top Colors: Orange, Silver, Black Red Diet: Omnivore . Rasboras and bettas coexist together in the wild. Rasbora heteromorpha generally spawns on the undersides of . But it also means that they're feeding requirements, and the environment they like the most are going to be similar as well! They are peaceful and are found in southeast Asia, Sumatra, Singapore and Thailand. . Average Temperature : 73 F. These fish are peaceful with everything, but to keep things region authentic, opt for tank mates like Acanthopthalmus loaches, Puntius species like P. pentazona, or maybe even Chocolate gouramis. pH: 5-7. The Harlequin Rasbora does best in an established planted aquarium with open areas for swimming. This makes Harlequins less than ideal for a 5 gallon tank but, with frequent maintenance and water changes, a small school of no more than 4 fish can be kept happily . You need to transfer the breedable Harlequins to a separate tank and create the perfect breeding conditions. Both Harlequin and Lamb Chop Rasboras thrive well in an optimal water tank temperature of around 76 degrees Fahrenheit. Rasboras, especially members of the genus Boraras, prefer a pH of 5.0 to 7.0, KH between 1and 3, and a temperature between 75 and 80. Especially in larger groups an attractive spectacle! Max Size: 3.5 - 4.5 cm (1.38 - 1.77 inches) in length. Scientific Name : Rasbora Heteromorpha. Trigonostigma heteromorpha, or Harlequin Rasbora, is a very nice school fish for the community aquarium. The body color changes depending on various factors like population, temperature, dH level etc. They should be housed in an aquarium with plenty of broad leafed plants with a stable water temperature between 76 and 79 degrees F, along with an acidic soft water with a pH of 6.0 to 6.3. The species also tolerates a wide range of water chemistry conditions. . Now, I'll dive a bit deeper and discuss how temperature affects different aspects of cherry shrimps. #1. See also Guppy: The Complete Care And Breeding Guide Appearance The harlequin rasbora's vibrant appearance and peaceful behavior make this species extremely popular among aquarists. The best way to give the water a dark, slightly acidic quality is to filter it over peat or add peat extracts. Temperature: 73.0 to 82.0 F (22.8 to 27 . The harlequin can live in a wide range of temperatures, anywhere from 73 to 82F (23-28C). . The general water temperature in their natural range from 71C - 77C (22C - 25C). Scientific Name: Trigonostigma heteromorpha Common Name: Harlequin Rasbora Max Size: 1.25" pH: 6.0-8.0 Hardness: Soft Temperature: 68-80 Aggressiveness: Peaceful Region of Origin: Southeast Asia Captive Bred or Wild: Captive Bred Diet: Flake or pellet Compatibility: Schooling fish, dwarf cichlids, small catfish, livebearers, invertebrates . Asked by: Erika Lowe. Harlequin Rasbora Tank Mates. I've only had water in the tank for a couple of days and had been intending to keep the temp at around 23-24C. The Harlequin Rasbora, scientifically referred to as Trigonostigma heteromorpha, is a freshwater water tropical fish that originates from Southeast Asia. . They need to be kept healthy and the conditions in the tank need to match what they'd be used to in the wild. Care Galaxy Rasbora. The harlequin rasbora likes to live in groups and have no problem with other conspecifics in the aquarium. The Lambchop rasbora or False harlequin rasbora is a small very friendly schooling fish perfect for any planted community aquarium with other friendly species.