This variety is slightly smaller and less aggressive. 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. However, getting to see two fish working together to raise their fry is a unique experience. Smaller than the standard Jack Dempsey, this fish has iridescent blue scales. JavaScript is disabled. Just one or a school? 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. Common Name: Electric Blue Jack Dempsey Max Size: 12″ pH: 6.0-8.0 Hardness: Hard Temperature: 70-82° Aggressiveness: Aggressive Region of Origin: Central America Captive Bred or Wild: Captive Bred Diet: Flake or pellet, frozen and live food Compatibility: Alone, in pairs, or with similarly sized Central or South American cichlids Minimum Tank Size: 55 gallons 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). These non-American populations arose from escapees (intentional or otherwise). However, you can now find established populations in Australia and Thailand, where they’re known as Mexican blue frontosa. This particular variety has a less aggressive reputation than its larger cousin. If you plan on keeping more fish, an increase in tank size is a must. Whether invading Australia and Thailand or haunting cenotes in South America, Jack Dempseys prefer tropical climes. As such, consider using sand or fine gravel on your tank bottom. Baby Electric Blue Jack Dempsey (Rocio octofasciata) Building Up Aquarium Jack Dempsey Habitat and Tank Conditions If breeding is your goal, you’ll want to set everyone up in the same tank from the beginning. There pretty fish it's just I dont like the electric blues. For more information, please check our, How to Properly Care for Rosy Red Minnows, Pregnant Ghost Shrimp – What to Look for, What to Do. However, make sure you incorporate some live, frozen, or freeze-dried protein options into the mix. Size. Ensure that their water moves decently, but not too rapidly. As such, aim for a pH level of 6.0-7.0 and a hardness of 9-20 dH. Order: Perciformes 5. It’s better to … Your Jack Dempsey fish will grow between 10-15 inches, with females growing a little shorter. Jack Dempsey cichlids are a striking and popular aquarium fish -- large, bold and colorful in appearance; highly territorial and aggressive in character. However, they still need top water quality and a balanced diet to prevent some nasty health problems. Fishtankadvisor.com does not intend to provide any kind of veterinary suggestion. Phylum: Chordata 3. 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. Ok. Youd be hard pressed to find a male dempsey in the hobby over 10" or a female beyond 8" to be honest. Both of them then set to work digging pits in the nearby sand. Jack Dempsey cichlids are an aggressive species of fish that needs plenty of territory. But skip “cichlid sands.” They contain aragonite – a form of calcium carbonite. When setting up your tank for Jack Dempseys, you want to make sure the conditions are as close as possible to their native habitat. 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. So check the fins, size, and then do a spot count. Family: Cichlidae 6. After three days, the eggs hatch. Jack Dempsey fish have a sturdy reputation. Cichlids are opportunistic feeders, and they have no problem snatching up your freshwater shrimp or snails. Setting the temperature to 84°F (29°C) triggers the spawning drive. And, crazy as it sounds, the more fish you stock into your tank, the better off everyone will be. And while they require some careful management, they integrate into select community aquariums without a problem. Without one fish to single out for bullying, peace will reign in the aquarium. They need careful management for their aggressive streak, but that much beauty is worth it. It’s nothing personal; it’s just their way. TBEAR. Both parents guard the young over the next ten days. 1. My Jack Dempsey Fish Is Attacking Its Tank Mates. Decorating cichlid aquariums always presents a challenge. ... but mostly it's just waste building up in the tank and harming the fish's health, causing disease. If you get a little warmer, they won’t mind, but don’t forget the other fish in the tank. How big do Jack Dempsey fish get? Genus: Rocio 8. Remember their wild cousins live in slow-moving, tropical waters, such as canals, lakes, murky rivers and swamps. If you’ve done all of your work correctly, though, you may or may not notice this as readily as the other cues. 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. They crush and release food to feed the tiny fry until they’re large enough to swim independently. Learning about Jack Dempsey Fish Care can help your fish. This leads novice aquarists to believe the fish will stay relatively small and live happily in a 10 or 20 gallon aquarium. The pair will clean off their chosen rock by blowing the sand away. The young fish are often “packed” into a display tank at the aquarium shop. There's plenty of other Central & South American Cichlids to choose from. Head and Lateral Line Erosion (HLLE) crops up whenever poor nutrition happens. Adults should be purchased as singles. The average size of a Jack Dempsey in adulthood can be 10-15 inches at most. 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. I prefer a nice red mix with a blue. Reigning champion from 1919-1926, Dempsey had the nickname the “Manassa Mauler.”. 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. Picture a fish that size in a 4 foot tank. The stress will result in your fish showing paler colors – your head’s up that there’s a problem. A 50 gallon would still be too small. (But don’t overcrowd the tank!). You want to keep that water temperature around 74-85°F (23-29°C). 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). Jack dempsey Fish Tank Size. And if you don’t have experience with territorial fish, you should skip this cichlid. Your Jack Dempseys won’t bother them, and they’ll cut down on the lighting, creating the dim conditions your fish prefer: Don’t forget that shy side to your Jack Dempseys. And while it’s popular to mix invertebrates into tanks these days, they don’t work well with Jack Dempseys! A tank with the size of 180 x 60 x 60 cm cannot be said to be a minimum though as the tank with this size is actually better for Midas cichlid. If you want a better compromise, though, consider floating plants. The Jack Dempsey is a medium-to-large fish, which grows to a maximum of an adult size of 10″, but the range is 8-10″, (20-25 cm). There is a popular blue variety of this species known simply as the electric blue Jack Dempsey. Make sure you stay on top of your water changes. If you can find one, the Electric Blue Acara's seem to have displaced them somewhat. For a better experience, please enable JavaScript in your browser before proceeding. The content of this website is not meant to be a substitute for professional medical advice. what my question is how do i breed them? JDs need a bare minimum of 100 gallons. It’s an essential lesson on NEVER releasing unwanted fish into the wild. [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 . Waiting until your fish naturally pair off together prevents that damage. how can i trigger spawning? But they aren’t as familiar with the shy side of this colorful fish. Ensuring plenty of cave options to allow everyone to set up a territory is another option. How about a threadfin acara? They will attack and harass tank mates that are smaller or try to eat them. Of course, if the parents get stressed, they eat their fry, so make sure you keep everyone happy. It’ll also provide another dark place for them to retreat to. As the Jack Dempsey originally come from Central America, the water should be alkaline and little bit harder (dGH 1… The male grows larger as compared to females. When they are juvenile, they can be only 2-3 inches in size, which might mislead some fish owners, especially beginners. The Jack Dempsey fish are found in slow-moving– or even still – warm water with a sandy bottom and a lot of hiding spots, and it is with this in mind that I shall now proceed to discuss the tank setup. 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. However, if you’re sticking to a lone male or choosing the proper tank mates, these gorgeous cichlids do just fine in mixed company. The dorsal and anal fins are longer in size and come to sharper points. If you are planning to have only one Jack Dempsey, you will need a tank that can hold 55-60 gallons. Of course, males have that more aggressive streak. If the ammonia or nitrate goes above 0 ppm, it’ll start to impact the immune system of your Jack Dempseys. I've always liked those. These fish can grow up to 25 cm (10 inches) in length, so it is recommended to keep a single specimen in a rather larger tank - ideally 100 US gallons (378 liters / 83 imperial gallons) per adult fish. To provide your Jack Demp… Sorry, but your 42 gallon bowfront would be too small. A heater is essential to maintain a water temperature between 72 and 86 degrees. Jack Dempseys have generally longer bodies and long flowy fins. Fun fact: Jack Dempseys change color throughout their lives. This is dangerous, and repeated attacks may kill her. You CANNOT leave them in the community tank, or you’ll end up with utter devastation. You’ll keep those blue, red, gold, and pink colors looking their brightest. Originally from Yucatan peninsula, Guatemala and Honduras, the Jack Dempsey Cichlid belongs to very beautiful, but aggressive fish species. Sand will settle back out when your Jack Dempsey finishes digging. First off, this very fish species should be housed in a tank with a minimum carrying capacity of about 190 liters – and maybe a bigger tank depending on the number of fish you are attempting to keep therein.The tank should have a dark sandy substrate – finely grained sand should be utilized. While Jack Dempsey fish reach impressive sizes and look stunning in a tropical aquarium, they aren’t out of reach – even for aquarists of modest means. You can find processed fish foods designed with carnivores in mind. Subfamily: Cichlasomatinae 7. As juveniles, they’re grey; adults take on gorgeous hues; spawners go almost black. Jack Dempseys tolerate bogs, irrigation ditches, and streams. They max out at 7-8 inches. The pair catch the fry and usher them to the sandpits. should i remove them when free swimmers? So while that hefty tank needs a matching filter, you don’t want to overdo the outflow. 1. It is a very colorful , hardy, and aggressive fish. Aquarists recognize the sloping profile and aggressive nature of Jack Dempseys. Jack Dempsey Fish Tank Requirements. That’s provided you give them enough room, of course. No one’s quite sure whether they’re a variant of a wild type or engineered from selective breeding. You’ll see pits forming on your Jack Dempsey’s head. The breeding tank should stay as clean and conditioned as your community tank. There’s something so striking about those dancing patterns across the sides and gill covers. Get a Big Tank. When breeding, these colors will intensify. NO other fish can go in the breeding tank! If left untreated, lesions result, and develop pockets of mucus. They get BIG. After all, in the wild, they tolerate high water temperatures and low oxygen levels. A Silent & Reliable Canister Filter: Which Brand to Trust? 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’. With such a variety of colors to choose from, even a little mean streak seems worth it. ... Overview. Originally, Jack Dempsey fish inhabited shallow, slow-moving waters in Belize, Guatemala, Honduras, and Mexico. Still would be like putting a 20 ft shark in a 30 ft tank. 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. First of all, the tank must be large enough. they are about 4-6 inches each. 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. 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. You must log in or register to reply here. Tank Size. Jack Dempsey fish are frequently sold as juveniles, measuring 2 to 3 inches in length. Of course, if you want one of the rarer color variations out there, you’ll have to pay more. 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. And make sure there are flat stones at the bottom of the tank – your Jack Dempseys need them for an egg-laying site! Size: Grows to 12" How many to buy: Juveniles can be purchased in groups of similar sized dempseys. Jack Dempseys will pursue and kill other fish once they’ve paired off and settled down to mate. And they aren’t picky about where that protein comes from. You shouldn’t expect to see that in your tank, though. 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. Jack Dempsey are large, aggressive fish. Tank measurements. Dither fish are schooling species that show nervous fish everything’s okay – maintaining normal activity levels. Of course, you can’t go wrong with any of the Jack Dempseys. when do they become sexually mature? These carnivores can’t resist an easy-to-catch snack. So while tetras frequent the same regions in the wild, you should skip adding them to your community aquarium. In the wild, males top out around 15 inches (38 cm), and the females get approximately 10 inches (25 cm). 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. Like any other cichlid, Jack Dempseys enjoy digging in the substrate and rearranging all of your hard work. So, they need a tank that’s at least 80 gallons. (Females have fewer spots across their bodies than males). Keep a close eye on your water quality. Jack Dempsey fish are sexually dimorphic, with males growing larger than females. Of course, that range depends on the quality of their care. 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. If you wait until your Jack Dempseys are mature and pair two together, you could end up with a brutalized female. Rough purchase size 4-5cm The Jack Dempsey is a popular freshwater fish that originates in the murky warm waters of Central America. Jack Dempsey fish frequent streams with slightly soft, acidic waters. Jack Dempsey fish males reach a larger size than females. 100-120 gallons of water a display tank at the bottom of the tank – head. 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