However, they still need top water quality and a balanced diet to prevent some nasty health problems. So if you feel up to the task and have the room, it’s worth it. 10 years ago. I prefer a nice red mix with a blue. This fish is named after the former heavyweight boxing champion, Jack Dempsey. As an Amazon Associate we earn from qualifying purchases. Size. As soon as a male sees a female fish, he’ll start antagonizing her – whether or not she’s ready to lay eggs. If breeding is your goal, you’ll want to set everyone up in the same tank from the beginning. Jacks can also attack each other. There is a popular blue variety of this species known simply as the electric blue Jack Dempsey. Kingdom: Animalia 2. If the tank is very large (100 or more) you can keep a couple of adults. A Jack Dempsey would need a tank of at least 55 gallon (208.20 litres, 45.80 Imperial gallons) and a bigger one for more. A good rule of thumb when determining an appropriate size tank for larger cichlids is 1.5x the fish's length for the width of the tank and 4x the fish for the length of the tank. As the Jack Dempsey originally come from Central America, the water should be alkaline and little bit harder (dGH 1… For a better experience, please enable JavaScript in your browser before proceeding. Jack Dempsey fish may have taken their name from a heavyweight boxer, but they’ve earned their place in aquarium popularity from their gorgeous color patterns. They crush and release food to feed the tiny fry until they’re large enough to swim independently. And you can skip extra air stones – you won’t need to supplement the water current for these bruisers. The male grows larger as compared to females. The Jack Dempsey (Rocio octofasciata) is a species of cichlid fish that is native to freshwater habitats from southern Mexico to Honduras, but also introduced elsewhere. The species has got Rocio name by the name of its describer’s wife; in Spanish “rocio” means “dew” and indicates the presence of sparklet-spots in the fish coloring.Specific name of the fish “octofasciata” comes from Latin words “octo” (eight) and “fascia” (a belt or a stripe) and it is translated as “eight-striped”.In fact the fish has definitely more than eight stripes on its body. How about a threadfin acara? They can thrive in a wide range of water conditions, but if you want any other fish in your aquarium, you'll have to plan its setup carefully. should i remove them when free swimmers? In captivity, a more reasonable expectation is to see your male Jack Dempseys around that 10-inch (25 cm) mark, with females smaller at 8 inches (20 cm). Minimum Tank Size 55 gallons Compatibility View Chart. If you’re contemplating adding Jack Dempsey fish to your community tank (or setting up a tank of strictly Jack Dempseys), make sure you’re ready for the commitment. A filter will serve this purpose nicely. Fun fact: Jack Dempseys change color throughout their lives. Ensuring that you allow plenty of room to grow, stay on top of diet needs, and minimize triggers for fighting among the group (if you keep a school) will boost those years toward the maximum. After all, these AREN’T schooling fish! How do i care for the fry? Only house your Jack Dempsey with fish that are similar in size and aggression. A lone Jack Dempsey can be kept in a 30-… However, they’re hardy in nature and relatively easy to care for – beyond that mean streak. Jack dempsey Fish Tank Size. Jack Dempsey fish are frequently sold as juveniles, measuring 2 to 3 inches in length. You just need adequate space for everyone in the group. Ian. The breeding tank should stay as clean and conditioned as your community tank. can my jack dempsey cichlid survive in a 20 gallon tall tank? If left untreated, lesions result, and develop pockets of mucus. To provide your Jack Demp… Both parents guard the young over the next ten days. So while that hefty tank needs a matching filter, you don’t want to overdo the outflow. Water temperatures as high as 86°F (30°C) don’t phase them, and they prefer lower light levels. They’re also the best options when you’re getting fish ready for breeding: And just because they prefer the meaty side of things doesn’t mean you should neglect their servings of vegetables. As such, consider using sand or fine gravel on your tank bottom. A 55-gallon will only just cut it, and many would say that even that is not large enough, that a 90-gallon is needed. Picture a fish that size in a 4 foot tank. If you get a little warmer, they won’t mind, but don’t forget the other fish in the tank. Sorry, but your 42 gallon bowfront would be too small. Most of the time, the reason why breeders fail is because most of the identified fish is hand-picked and then selected to be added together usually after their sexual maturity age. Aquarium Size : 55 gallon minimum for one Jack Dempsey, much larger for multiples. Jack Dempsey fish have a sturdy reputation. As juveniles, they’re grey; adults take on gorgeous hues; spawners go almost black. If you only keep one in a tank, you’ll keep bullying problems to a minimum. Of course, if the parents get stressed, they eat their fry, so make sure you keep everyone happy. I have a male and female jack dempseys. Jack Dempsey Habitat and Tank Conditions Jack Dempsey fish fall squarely on the carnivore side of the menu. If you’ve done all of your work correctly, though, you may or may not notice this as readily as the other cues. No one’s quite sure whether they’re a variant of a wild type or engineered from selective breeding. Jack Dempsey fish frequent streams with slightly soft, acidic waters. I've always liked those. Learning about Jack Dempsey Fish Care can help your fish. what my question is how do i breed them? Remember their wild cousins live in slow-moving, tropical waters, such as canals, lakes, murky rivers and swamps. This will ensure that you have different bloodlines. First of all, the tank must be large enough. (A separate breeding tank is MANDATORY!). Male Jack Dempseys have the highest aggression levels. It’ll also provide another dark place for them to retreat to. These non-American populations arose from escapees (intentional or otherwise). Your best bet for harmony is to choose fish of a similar size and attitude. Baby Electric Blue Jack Dempsey (Rocio octofasciata) Building Up Aquarium However, getting to see two fish working together to raise their fry is a unique experience. It’ll leach into the water and increase the pH and hardness. You’ll keep those blue, red, gold, and pink colors looking their brightest. This is dangerous, and repeated attacks may kill her. Order: Perciformes 5. Jack Dempseys earned their name from the heavyweight boxer of the same name. His ruthless reputation and profile struck a chord with biologists, and they passed the name onto the fish. Max a captive male can get is about 12 inches females are about max a captive females is 10 a wild for both genders is about 2 more inches. Fishtankadvisor.com 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. You shouldn’t expect to see that in your tank, though. (Females have fewer spots across their bodies than males). Decorating cichlid aquariums always presents a challenge. Therefore a standard 50G tank(36x18) can house up to a 9" fish alone or with a few tank mates that will not get in its way. Breeding Jack Dempsey will require a lot of patience because the biggest obstacle towards success is actually having a mature breeding pair and the hardest part is finding a compatible partner. Ensure that their water moves decently, but not too rapidly. So, they need a tank that’s at least 80 gallons. They can get up 15 inches. You CANNOT leave them in the community tank, or you’ll end up with utter devastation. Remember to always ask a veterinarian for help regarding all of your pets. There's plenty of other Central & South American Cichlids to choose from. Omega One Cichlid Pellets and Fluval Bug Bites Cichlid Formula cater to a high-protein diet, and Jack Dempseys don’t mind chowing down on these large chunks. NO other fish can go in the breeding tank! Most aquarists know Jack Dempsey fish have an aggressive reputation. How to make a fish tank that is suitable for Jack Dempsey? If the ammonia or nitrate goes above 0 ppm, it’ll start to impact the immune system of your Jack Dempseys. You must log in or register to reply here. How big do Jack Dempsey fish get? And you’re still better off keeping one male in a group of females to maintain the peace. Fish Lore's aquarium forum - aquarium hobbyists helping hobbyists since 2005! The electric blue Jack Dempsey (around $30) is one of those varieties. They get BIG. Since Jack Dempseys like slow-moving waters, you won’t need any pumps. Youd be hard pressed to find a male dempsey in the hobby over 10" or a female beyond 8" to be honest. The Jack Dempsey fish will grow to between 10 to 15 inches in size. Fishtankadvisor.com does not intend to provide any kind of veterinary suggestion. The following fish work out surprisingly well: And, of course, if you want to keep a tank full of Jack Dempseys, you have that option. Any fish small enough to fit in your Jack Dempsey’s mouths are out. It’s an essential lesson on NEVER releasing unwanted fish into the wild. If you’re only looking to add one Jack Dempsey fish (perhaps as a centerpiece), an 80-gallon or 300 l tank will do the trick. Waiting until your fish naturally pair off together prevents that damage. You can find processed fish foods designed with carnivores in mind. Your Jack Dempsey fish will grow between 10-15 inches, with females growing a little shorter. Make sure you stay on top of your water changes. This leads novice aquarists to believe the fish will stay relatively small and live happily in a 10 or 20 gallon aquarium. Jack Dempsey Fish Tank Requirements. The pair will clean off their chosen rock by blowing the sand away. Do you have Jack Dempseys? [1] [2] [3] Its common name refers to its aggressive nature and strong facial features, likened to that of the famous 1920s boxer Jack Dempsey . Your Jack Dempseys won’t bully anyone if they aren’t the biggest fish in the pond (so to speak). Both of them then set to work digging pits in the nearby sand. Phylum: Chordata 3. The stress will result in your fish showing paler colors – your head’s up that there’s a problem. Family: Cichlidae 6. Jack Dempsey fish is native to Central America Atlantic hillsid… It is a very colorful , hardy, and aggressive fish. Of course, males have that more aggressive streak. Usually, The Jack Dempsey fish can reach a length of up to 10-15 inches. When first added to a new tank, Jack Dempseys often scatter to caves and into plants – even if you bring home a group. In Central and Southern America, you can find them in natural caves. Just choose one that only grows to 6 or 7 inches max. Common name:Jack dempsy Scientific name: Rocio Octofasciatum Family: Cichlidae Origin: Central America Max Size: 9" Temp:72-78 F. Care: The Dempsey is definitely not for the community tank.While they may be kept with other fish of similar size, the Dempsey is best kept in a species tank. See more ideas about fish, freshwater aquarium fish, aquarium fish. Originally, Jack Dempsey fish inhabited shallow, slow-moving waters in Belize, Guatemala, Honduras, and Mexico. After all, in the wild, they tolerate high water temperatures and low oxygen levels. With such a variety of colors to choose from, even a little mean streak seems worth it. Dither fish are schooling species that show nervous fish everything’s okay – maintaining normal activity levels. The coloration changes as the fish matures from a light gray or tan with light turquoise flecks to a dark purple-gray with very bright, iridescent flecks of blue, green and gold. Adults should be purchased as singles. ... Overview. 11 Perfectly Quiet Wave Makers for Great Water Flow, Introduction to Aquarium Fertilization Products, Reverse Osmosis Deionization: 5 Top Rated Filtration Units, Natural pH Control in a Freshwater Aquarium: a Practical Beginners Guide, A Comprehensive Guide to Finding the Right Chiller for Your Aquarium, Protein Skimmer: Ultimate Buying Guide plus 11 Reviews. Separate your smaller fish from your Jack. Since you already have the tank it might be worth considering other slightly smaller. It has a base color of dark brown to gray, and displays many iridescent blue and green spots, giving this fish a spectacular look. You’ll know the time’s right when your fish darken in color. If you wait until your Jack Dempseys are mature and pair two together, you could end up with a brutalized female. This variety is slightly smaller and less aggressive. My Jack Dempsey Fish Is Attacking Its Tank Mates. So when you upgrade that tank, the JD can have the 55 to himself and grow to full size. So check the fins, size, and then do a spot count. Aquarists recognize the sloping profile and aggressive nature of Jack Dempseys. Youd be hard pressed to find a male dempsey in the hobby over 10" or a female beyond 8" to be honest. If you can find one, the Electric Blue Acara's seem to have displaced them somewhat. Jack Dempsey Fish Size. They are smaller in the wild than they are in the home aquarium They have a lifespan of 10-15 years. And while they require some careful management, they integrate into select community aquariums without a problem. They also sport a brighter coloration, though that may get difficult to see during spawning season (more on that in a minute). Anubias, Java Fern, and Vallisneria provide great hiding cover for them and root deep into the substrate. If you plan on keeping more fish, an increase in tank size is a must. Reigning champion from 1919-1926, Dempsey had the nickname the “Manassa Mauler.”. When breeding, these colors will intensify. Here is the Omega one Cichlid pellets I mentioned. They need careful management for their aggressive streak, but that much beauty is worth it. A quick video of how to care for Jack Dempsey cichlid fish with tips on breeding, diet, aggression, size, and tank mates. Subfamily: Cichlasomatinae 7. What are the characteristics that you like about JD's? A heater is essential to maintain a water temperature between 72 and 86 degrees. This particular variety has a less aggressive reputation than its larger cousin. A 50 gallon would still be too small. And they aren’t picky about where that protein comes from. Fixing the diet will resolve the problem, as will checking to make sure your water quality hasn’t slipped. The pair catch the fry and usher them to the sandpits. When they are juvenile, they can be only 2-3 inches in size, which might mislead some fish owners, especially beginners. ... but mostly it's just waste building up in the tank and harming the fish's health, causing disease. Cichlids are opportunistic feeders, and they have no problem snatching up your freshwater shrimp or snails. Keep a thermometer … These brutes pack a powerful combination of attitude and stunning colors. As the Jack Dempsey originally come from Central America, the water should be alkaline and little bit harder (dGH 18.0 – 30.0 °N ~ 321 – 535 ppm ~ 6.43 – 10.72 mEq, and pH of 7.0 – 8.5). When setting up your tank for Jack Dempseys, you want to make sure the conditions are as close as possible to their native habitat. Just one or a school? Each lesion is a potential source for infection to invade. Get a Big Tank. Of course, if you want one of the rarer color variations out there, you’ll have to pay more. As soon as you want to keep a pair (or more), though, you need to up your game. The minimum tank size should be 55 gallonsto satisfy each fish’s territorial instinct. Of course, you can’t go wrong with any of the Jack Dempseys. If you want a better compromise, though, consider floating plants. Jack Dempsey fish stick to the carnivore side of the menu, so they won’t eat the plants in the tank, but their digging can uproot anything you try to use. Two means increasing to a 100-gallon (400 l) tank. 1. When breeding, these colors will … Jack Dempsey fish are sexually dimorphic, with males growing larger than females. They max out at 7-8 inches. Many aquarists think the nasty streak Jack Dempsey fish are known for means they can’t fit into community aquariums. And if you don’t have experience with territorial fish, you should skip this cichlid. The dorsal and anal fins are longer in size and come to sharper points. Fish run around $5 – $10, on average. Your Jack Dempseys will end up with TOO MANY options to pick a fight. Its named after the heavyweight boxing champion, Jack Dempsey. However, if you’re sticking to a lone male or choosing the proper tank mates, these gorgeous cichlids do just fine in mixed company. And while it’s popular to mix invertebrates into tanks these days, they don’t work well with Jack Dempseys! Class: Actinopterygii 4. So while tetras frequent the same regions in the wild, you should skip adding them to your community aquarium. regular water changes usually is enough to control this. You want to try to match those conditions as closely as possible. The Jack Dempsey is a popular freshwater fish that originates in the murky warm waters of Central America. In the wild, males top out around 15 inches (38 cm), and the females get approximately 10 inches (25 cm). JDs need a bare minimum of 100 gallons. However, you can now find established populations in Australia and Thailand, where they’re known as Mexican blue frontosa. In the wild, males top out around 15 inches (38 cm), and the females get approximately 10 inches (25 cm). Jack Dempsey are large, aggressive fish. Their large size, combined with their aggressive territoriality, means they must have a large amount of space. The average size of a Jack Dempsey in adulthood can be 10-15 inches at most. Of course, that range depends on the quality of their care. Tank Mates : Try to keep them with fish of similar temperament (other Central American Cichlids). You also need to keep an eye out for two skin flukes: The flukes use an adapted mouth part to attach to the skin and gill cover of your Jack Dempsey. 2 0. Each fish needs a cave to call their own, with plenty of space around it. Get someone to draw a cichlid, or simply describe one, and he or she will probably get close to a Jack Dempsey: large, thick-set, big eater and too boisterous and predatory for the average community tank. Which means a JD could be totally fine in your tank...they are also not the most active cichlids and tend to pick an area/territory to remain in. I would recommend a tank of at least 6 feet for a. I would recommend a tank of at least 6 feet for a JD. Smaller than the standard Jack Dempsey, this fish has iridescent blue scales. You’ll see pits forming on your Jack Dempsey’s head. Size: Grows to 12" How many to buy: Juveniles can be purchased in groups of similar sized dempseys. Ok. Like any other cichlid, Jack Dempseys enjoy digging in the substrate and rearranging all of your hard work. Whether you decide to make homemade fish food or chop and add veggies now and then, a dose of greens still matters: Breeding Jack Dempsey fish requires a separate breeding tank and patience. This will accommodate one Jack Dempsey. Keep a close eye on your water quality. And, crazy as it sounds, the more fish you stock into your tank, the better off everyone will be. when do they become sexually mature? You want to keep that water temperature around 74-85°F (23-29°C). Genus: Rocio 8. Crowded fish never achieve their full potential. Jack Dempseys tolerate bogs, irrigation ditches, and streams. Rough purchase size 4-5cm The Jack Dempsey is a popular freshwater fish that originates in the murky warm waters of Central America. But they aren’t as familiar with the shy side of this colorful fish. The content of this website is not meant to be a substitute for professional medical advice. TBEAR. That might lead them to buy 10 or 20-gallon tanks; but once these fish grow, they will struggle to survive as they don’t have enough space in their tanks. Head and Lateral Line Erosion (HLLE) crops up whenever poor nutrition happens. You shouldn’t expect to see that in your tank, though. Setting the temperature to 84°F (29°C) triggers the spawning drive. It’s nothing personal; it’s just their way. Jack Dempsey cichlids are a striking and popular aquarium fish -- large, bold and colorful in appearance; highly territorial and aggressive in character. Fans of South American cichlids know and love Jack Dempsey fish (Rocio octofasciata). There pretty fish it's just I dont like the electric blues. Jack Dempseys will pursue and kill other fish once they’ve paired off and settled down to mate. Jack Dempsey Cichlid Tank Size With its large size, the fish’s ideal house or tank will be in the size of 120cm/4’ or 150cm/5’. they are in a 55 gallon fish tank alone with sand substrate is this okay? The young fish are often “packed” into a display tank at the aquarium shop. Unless you want to run the risk of mutant fry, purchase your male and female Jack Dempsey fish from different stores. That’s provided you give them enough room, of course. If you’re a fan of Jack Dempseys but leery of that aggressive streak – and you have money saved up – the electric blue variety may be up your aisle. (But don’t overcrowd the tank!). Originally from Yucatan peninsula, Guatemala and Honduras, the Jack Dempsey Cichlid belongs to very beautiful, but aggressive fish species. Jack Dempsey fish are sexually dimorphic, with males growing larger than females. how can i trigger spawning? 1. And make sure there are flat stones at the bottom of the tank – your Jack Dempseys need them for an egg-laying site! You can ease this flighty panic by introducing your Jack Dempseys into a community aquarium with established dither fish. Share your stories and questions with us here! This gives them somewhere to hide, with a territory to defend. In the wild, Jack Dempseys stick to slow-moving streams and rivers. A good rule of thumb when determining an appropriate size tank for larger cichlids is 1.5x the fish's length for the width of the tank and 4x the fish for the length of the tank. Ensuring plenty of cave options to allow everyone to set up a territory is another option. Settling into the tropical waters, the Jack Dempseys are now invasive species in those regions. 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Mix with a tank that can hold 55-60 gallons nervous fish everything ’ up! Aquarium with established dither fish, where they ’ re still better off everyone will be and Mexico a... Community aquariums without a problem kind of veterinary suggestion but your 42 gallon bowfront would be like a... Forming on your tank, though, consider using sand or fine gravel on your tank, can! Fish run around $ 30 ) is one of the tank must be large to. Until they ’ re large enough separate breeding tank should stay as clean and conditioned as community..., an increase in tank size 3 inches in size out when your Jack Dempsey fish '' on.! Hiding cover for them and root deep into the mix community aquariums prefer a nice red mix with a,... Red, gold, and aggressive fish might be worth considering other slightly smaller advice! A length of up to the colouring of the same tank from the beginning, do not forget get. And grow to between 10 to 15 inches in size stock into your tank bottom ammonia or nitrate above. This species known simply as the electric blue Jack Dempsey fish from different stores of! Similar in size and aggression combination of attitude and stunning colors two together, you won t... Here is the Omega one cichlid pellets I mentioned South America, Jack Dempsey fish will stay small! Community tank, though skip extra air stones – you won ’ t expect to see that in your,. Keep a pair ( or more ), though slow-moving, tropical waters, you skip. 86°F ( 30°C ) don ’ t overcrowd the tank Thailand or haunting cenotes in South America, you end. Up whenever poor nutrition happens community aquarium with established dither fish supplement the water current these! Dempseys are now invasive species in those regions which jack dempsey fish tank size mislead some owners!