Astro-Turf, which tends to discourage most octopuses from climbing across it. to your comment. The fact that an octopus, with the adorable name Inky, was able to escape its tank (and escape to the ocean by way of a laboratory drain) isn't surprising. His tank was left open. *Octopuses are considered to be one of the most intelligent marine species. For example, there are a plenty of good reasons that glass tops are not popular for reef tanks, including such issues as light Earlier this week a wily octopus impressed Reddit by grabbing a camera and turning it on some scientists. In the 2005 thread, “Octopus escapes from tank to prowl on its neighbors” poster Iustinus said he’d heard a story about an aquarium where fish kept disappearing from one particular tank. My recommendation here is obviously not the only way that an octopus can be kept in captivity, but I am offering you my opinion for the way in which you are most likely to have success in keeping an octopus happy and healthy throughout it’s lifespan. 1989). Their brain is the largest and most advanced of any invertebrate. certainly an expensive way to feed your new pet. the same level of attention, but we have preserved this area in the interests of open debate. The eight-armed sea creature was f… All-in-all, the vast majority of reef aquaria quite simply provide an inappropriate place to try to keep an octopus alive and healthy for extended periods of time in captivity…. Most aquarium books that mention octopus at all claim that these animals are extremely sensitive to water quality and cannot survive without reef-quality water conditions (e.g., Haywood and Wells 1989). Inky the Octopus escaped the National Aquarium of … Also, as I said, these animals have special needs, and they are simply not suitable for most reef aquaria. They use their rearmost tentacles to push off from the surface of the sea bed before propelling themselves through the water with the other limbs. Three months ago an octopus named Inky escaped a New Zealand aquarium by sliding out of a tank, crawling across the floor, and wriggling through a drain pipe. As I mentioned above, these animals are extremely intelligent predators, and spending their life in a completely predictable and unchanging glass box is not only boring for them, it has a strong impact on both their health and behavior (e.g., Wood and Wood 1999). In fact, I have said more- or-less that same thing in this very article (above). So where does this idea that octopuses require extremely high quality water come from? The shedding of skin is one of the primary reasons that I like to use a mechanical power filter of some sort on an octopus tank – most such filters on the market today will do a good job of removing and collecting all the floating skin from the tank quite quickly. Eyespots on each side of the head, are a striking feature of this octopus. This can be as simple as an air pump running a couple of airstones in the tank, or making sure that your air intake on your protein skimmer is plumbed in such a way that it draws from the room rather than inside your tank. In the dark of night, an enterprising octopus named Inky snuck out of his tank at the National Aquarium of New Zealand and made an eight-armed dash for freedom. In fact, during his research with baby octopuses at Dalhousie University, James Wood discovered that he could prevent “suicides” (animals crawling out of their tanks and drying out) by adding sufficient numbers of toys and challenges to keep the animals interested (e.g., Wood and Wood 1999). An octopus has successfully escaped an aquarium and re-entered the ocean by squeezing through a gap in its tank. This may seem unimportant to you, but it turns out to be very important to your pet. Johnston L, Forsythe J (1993) An Octopus in Your House? Then he was ceremoniously dumped in the ocean. Experiments with the common octopus, Octopus vulgaris, have shown that these animals will die when the concentration of dissolved oxygen drops to 2.5 mg/L, and are more likely to succumb to disease or injury with oxygen concentrations below about 5 mg/ L (Nesis 1982). Although many medical and scientific names tend to be Latin, for which the “i” ending is the correct plural (e.g., bronchus and bronchi), the name octopus comes from Greek roots ( okt = eight, and pous = foot), and should not be pluralized in the same way. There are many options for enriching the environment in which your animal is housed, but providing an abundance of live prey periodically is one of the simplest and most satisfying for your animal. RNN Episode 138 – Served Up On A Plate: A Fantastic Looking Substrate, Bailey TG, Youngbluth MJ, Owen GP (1994) Chemical composition and oxygen consumption rates of the ctenophore Bolinopsis infundibulum from the Gulf of Maine. While it is true that both salinity and temperature will affect the particular value of the oxygen saturation coefficient in seawater (as outlined above) the actual maximum value of how much oxygen can dissolve in your tank is pretty much a non-factor during normal operation. California two-spot Octopus Also known as the bimac, its scientific name is Octopus bimaculoides. This leaves you with something of a dilemma: how do you leave the water surface open to allow access for filtration and efficient gas exchange while simultaneously making an escape-proof tank to prevent your octopus from climbing out (or removing the top to let itself out) and ending up on the floor? On the other hand, in areas with more limited gas exchange, there are actually higher oxygen concentrations during daylight hours because photosynthesis produces oxygen faster Sadly, many people do not realize that oxygen concentration is low in their aquarium until it is too late for the octopus. However, that statement is not entirely true. "We watched him swim away," said Mr Crane. The most insightful comments on all subjects This is obviously a concern with any tankmates that you try to add to an octopus tank, but of particular concern in a reef tank, because in general, reef aquarists use a variety of herbivorous snails, hermit crabs or other small crustaceans to control nuisance algae in the aquarium, and these “clean-up” crews are often fairly expensive. 1994), depending on the species and a wide range of factors including size, temperature, activity level, and so on. Even during that short walk, Sid was trying to lift the lid off the bucket. Oldest first, -1) ? Other options are to periodically feed your octopus in a novel way such as using a bamboo skewer through a cork to feed fresh shrimp, or placing the food item in a plastic bottle with a drilled cork sealing it. Yes, you read that right – there are numerous reports of octopuses not only being smart enough to figure out how to open the lid on their tank, but strong enough to actually do just that! In the 2005 thread, “Octopus escapes from tank to prowl on its neighbors” poster Iustinus said he’d heard a story about an aquarium where fish kept disappearing from one particular tank. Now we can come back to the issues of filtration and water quality. Newest first, -1) ? Live ghost shrimp are one alternative that usually prove easy to locate (many petshops First, elevated concentrations of heavy metals, especially copper, are especially deadly to invertebrates, whether they are corals or octopuses. I have kept and bred octopuses as pets for many years, and I am still constantly amazed by their intelligence and personality. In the simplest terms, without sufficient turn-over and current to allow efficient gas exchange, the rate of oxygen replacement into your tank water is not able to keep up with the rate at which is being removed by the animals and bacteria in the tank and filter. Beyond enrichment being important to the physical and mental health of your pet, it will also make your octopus a much more enjoyable and interactive pet. Furthermore, most octopuses are nocturnal, and even those that are active during the day prefer subdued lighting rather than the intense lighting that your average reef tank provides! Obviously, you should make an effort to provide such foods, and you should also try to get the freshest (live if possible) variety of seafood prey to ensure your animals health. Although their water quality requirements are close to those of a reef aquarium, and they need a lot of hiding places and good water flow, a reef tank is not really the best way to provide these for an octopus. will be published daily in dedicated articles. A huge octopus at the Seattle Aquarium woke up this week and decided he wanted to break free from those glass tank walls. *During the same experiment, it was discovered that the animals could perform complex tasks with their arms, such as manipulating a Rubik's cube. They defend themselves using camouflage, color change, expulsion of ink and threat displays, but they are also good at hiding themselves. However, I have seen some particularly determined octopuses manage to climb across an Astro-Turf barrier, so this technique is not always effective. However, there is plenty of variability in the system. 1992; Toonen 2000). OK, having gotten that out of the way, let’s move on to discussing what are the needs for keeping an octopus happy and healthy in captivity, and why you should not add one to your reef tank. Please Although many people are fascinated by the ability of an octopus to hunt down prey, feeder goldfish simply make a lousy food item for any marine predator (Toonen 2001) , and will contribute to an early death for your animal. Sharing the full story, not just the headlines, A few weeks later, Sid made a second dash for freedom. If the impeller of your powerhead is easily accessible (and almost all of them are), powerheads essentially function as a tentacle blender for the curious animal. A video posted to LiveLeak shows a large octopus as it apparently tries to escape from its tank at the Seattle Aquarium. Another potential for many people is live crayfish, which are seasonally abundant in many areas and often sold at bait shops for fishermen. Whatever solution you decide upon, it is important that it 1) is small enough that it does not allow the octopus into the overflow, and 2) is large enough that it does not restrict flow. Therefore, there is a trade-off between making sure that your octopus won’t escape and making sure that your overflow won’t clog: ideally, you want to use the largest mesh size that you can to ensure your octopus cannot enter the drain for this application. penetration, gas exchange, and heat retention. "We thought he must be actively seeking a mate," said Mr Crane. *Until recently, it was widely believed that they had eight arms. ... crabs I have kept in jars next to the octopus tank! There are about 300 species of octopuses around the world. Well, a number of studies have shown that seawater in areas around natural coral reefs are generally between 95-110% saturated with oxygen (i.e., 110% saturated means 10% more oxygen in the water than the value given in the table above). There are even stories of them purposefully escaping their own tank to snack on fish in a tank nearby. Even if you don’t mind having an octopus eat the majority of their tank mates, there are other problems you’ll face with trying to keep an octopus in a reef aquarium. This giant Octopus as the Seattle Aquarium decided he wanted to try and make a run for it. The opposite is true at night, though, when photosynthesis does not occur, and instead respiration uses up available oxygen (Adey and Loveland 1998). In any case, regardless of the design you decide to use, I think that using a protein skimmer and power filter with carbon are always a good idea for an octopus. Even in locations where live crustaceans are not easily obtained (either as bait or from a seafood shop or Asian grocery), there are usually alternatives such as “feeder glass shrimp” available from pet shops that can provide a nutritious and stimulating treat for your animal. Some animals will figure out these games very quickly and become bored with them again, whereas others may never figure them out and simply give up (Wood and Wood 1999). For example, I have seen some people have with great success with an undergravel filter and sealed glass top on an octopus tank, as well, but most octopuses tend to discover the undergravel plate makes a great cave, and promptly pull the filter apart to crawl beneath it. The respiration of the animals in the aquarium would likely be on the order of ~ 2-3g of oxygen per hour. The addition of an octopus to your reef tank will quickly eliminate this population of clean-up animals from your tank, because these are the same animals which are the favorite prey of an octopus in the wild. The octopus facts. Octopuses have extremely sensitive arms, and they tend to be very tactile animals: like small children, they like to touch, explore, and play with everything they encounter in their environment. even after I had glued them in place. Inky the Octopus escaped the National Aquarium of … Although it is impossible to know what an octopus is really thinking, this behavior has been compared to that of a dog getting excited and jumping about when you return home from work. try again, the name must be unique, Please Personally, I prefer to have only an overflow for the open sump in my tank and a remote pump that turns over the tank volume at least 5-6 times per hour. Aquarium Fish Magazine 5, Kraines S, Suzuki Y, Yamada K, Komiyama H (1996) Separating biological and physical changes in dissolved oxygen concentration in a coral reef. 'active' : ''"> Marine Ecology Progress Series 117: 159-172, Leclercq N, Gattuso JP, Jaubert J (1999) Measurement of oxygen metabolism in open-top aquatic mesocosms: application to a coral reef community. Earlier this week a wily octopus impressed Reddit by grabbing a camera and turning it on some scientists. Although octopuses are invertebrates, and some species are certainly found on coral reefs, these animals are not particularly suitable for a reef aquarium for a wide variety of reasons that I will try to outline below. Create a commenting name to join the debate. that would immediately or eventually prove too tasty a treat for your octopus to resist. This may work well for public aquaria in which a couple of feet (or more, depending on the size of the animal) of empty aquarium is easily hidden behind a wall and only the lower water- containing portion of the aquarium is open to viewing, but is probably not overly practical for most aquarists at home. Having said that, however, I always think it is a good idea to err on the side of caution, and I usually recommend an immediate water change in response to inking as a precaution regardless of carbon use. "An octopus is quite intelligent, so it's not beyond the scope of believability," Mr Crane said. The octopus’ name is Ink, and it’s a new acquisition for the aquarium. Want to discuss real-world problems, be involved in the most engaging discussions and hear from the journalists? A nother escape route for Inky may have been through a pipe at the top of his tank, although staff later found “octopus tracks” on the floor. The tank must be "mature." Most species of octopuses like a relatively high flow rate, but that also proves problematic for keeping these animals because most people use powerheads in an aquarium to generate flow, but I cannot really recommend that solution for an octopus tank. Guidelines. SEATTLE (PIX11) — A video posted to LiveLeak shows the harrowing moments a large octopus tries to escape from its tank at the Seattle Aquarium. Inky the octopus made a dash for freedom by apparently breaking out of his tank and slithering down a 50-metre drainpipe. So, if you can’t use feeders, what should you feed your octopus? Adding Control 2 the mix. ... opening jars and escaping through small spaces. I probably don’t have to work very hard to convince you that surf zones regularly pounded with waves aerate the water, and are probably always nearly saturated with oxygen. Again, his door was found ajar. Walter Adey reports similar levels of oxygen in his ATS-based tanks at the Smithsonian, but is also quick to point out that it is not the oxygen concentration itself that is important but rather the exchange rate of oxygen that is important to the health of the an imals (e.g., Adey and Loveland 1998; Leclercq et al. Staff were perplexed, and blamed impecunious marine biology students. Or, you know, just don't own an octopus. BIZARRE footage shows a giant octopus making a desperate bid for freedom after escaping from its tank in a scene that looks straight out of hit film Finding Dory. For anyone interested in more detail on these groups, I provide a simplified introduction to some of the issues of current taxonomic classifications and basic biology of the Phylum Mollusca in my Introduction to the Molluscs article (Toonen 1998). Update on Adam’s Tank. Due to the sheer scale of this comment community, we are not able to give each post I’m sure that anyone who is interested in keeping an octopus as a pet would much rather have the latter (excited interaction) than the former (constantly hiding) behavior in their pets. Octopus makes an unbelievable getaway from an aquarium back to the ocean Determined to find his way to freedom, an octopus named Inky apparently broke out of his tank, slithered across an aquarium floor and slid through narrow drain pipe into to the … You can find our Community Guidelines in full here. So, the bottom line is whether oxygen can get back into your tank fast enough to prevent it from being used up by the animals in your tank. 'active' : ''"> continue to respect all commenters and create constructive debates. It requires a tank of a capacity of 50 gallons or more. it is not possible for you to make a mesh top for some reason, is to have a solid top (either glass or plexiglass) with an external air intake for your filtration. 'active' : ''"> Within two months of starting these enrichment experiments, his octopuses went from constantly hiding to immediately coming out of their lairs and moving about on the glass while flashing “excitement” colors as soon as he entered the room (Wood and Wood 1999). Well, there are two primary requirements that are similar between the water parameters needed by both coral reef aquaria and by octopuses. Part 1 of the new journey. The octopus’ name is Ink, and it’s a new acquisition for the aquarium. No, what's surprising is … As I mentioned above, octopus tend to shed a lot of skin flakes on a regular basis, and if these are allowed to collect on the standpipe drain, there is a good chance that drain will become clogged and your tank may overflow. Inky the octopus escaped from the National Aquarium of New Zealand and into Hawke's Bay. Close the lid. If you can succeed with that, you’ll likely have a happy and healthy pet that will repay the effort through their interactions with you. Having said that, it makes sense to ask whether our tanks need to be at saturation, and what normal levels of oxygen are in the ocean in areas around coral reefs. ... a researcher opened their tank lids and put their head close to the opening, touched the octopuses with a … For example, some people use open tanks that are very deep, but only fill the tank part of the way such that it is a long way for the animal to climb before it can get over the top of the aquarium. According to the spokesperson, the octopus was new to the exhibit and was only exploring its surroundings and testing its boundaries. The restriction of flow tends to be more of a problem through time than when the mesh is first installed. That means that in practice, they usually have much more particular demands on some aspects of water quality (in particular, the oxygen content of the aquarium water – I will come back to water quality when discussing filtration below) than do most reef invertebrates. Sid, an octopus who was held captive in New Zealand, had been successful in escaping from his tank multiple times and even stayed in a drain for five days in an effort to hide before yet another escape attempt. It is therefore critical that you make every effort to try to provide sufficient stimulation to your pet in order to avoid such behaviors and prolong their life in captivity. interactive pet in your aquarium. Of all the octopus species, this one is the most popular as a pet. He was nicknamed Harry, after Harry Houdini. One of his tank's sliding plastic doors was ajar but it was not clear whether someone had left it open by mistake, or whether he had opened it himself. I have seen a number of posts recently asking for information about keeping an octopus, and thought that would make a good subject for an article this month. Community However, this also means that regular maintenance is required to prevent these filters from clogging up. SCHEEL: In a New Zealand aquarium, another octopus, named Inky, becomes famous on the news when it was reported for escaping its tank and crawling … Surprisingly, this isn’t the first time that a captive octopus has tried to escape from an aquarium. Inky the octopus escaped from the National Aquarium of New Zealand and into Hawke's Bay. Ignoring the variability across temperatures and salinities not seen naturally on coral reefs, the basic answer is that saturation for an average marine aquarium is roughly 6.5 mg/l. (Previously, another octopus named Harry had escaped from the same tank and was found on a … BIZARRE footage shows a giant octopus making a desperate bid for freedom after escaping from its tank in a scene that looks straight out of … Animal Uprising: Octopus Attempts Escape At Seattle Aquarium (VIDEO) By Andres Jauregui. Feeder goldfish have approximately 10 times as much saturated fat as any prey item in the natural diet of an octopus, and the continuous input of highly fatty foods into their diet has a dramatic effect on their expected lifespan in captivity (Toonen 2001) . Even more expensive would be the loss of giant clams ( Tridacna spp.) On average, natural coral reef areas are very close to 100% saturation (e.g., Kuhl et al. Tropical Fish Hobbyist #547: 94-99, Wood JB (1994) Don’t fear the raptor: an octopus in the home aquarium. Most liked, -1) ? For most tropical species of octopus, a lifespan of about 1-2 years is all that you can expect. NPR's Scott Simon celebrates his ingenuity and second-guesses the octopus… In addition to the reasons listed above, an efficient skimmer and some carbon will help in the event that your pet is scared into expelling its ink within the confines of the aquarium. I frequently see posts or hear people talking about “octopi” and it is somewhat of a pet-peeve of mine. In fact, it has been my experience that the various friction-fit filter baskets typically used to diffuse the intake flow (and prevent animals from being sucked into a powerhead intake) are easily removed by an octopus, Ms. Harvey recalled one octopus at a British aquarium that escaped nightly from his tank, slithered to a nearby tank to snack on fish for dinner, and went home. So Sid, who was about nine months old when caught, would be of an age now to be looking for love. Independent Premium Comments can be posted by members of our membership scheme, Independent Premium. Whatever the size of your tank and your pet octopus, it is always better to err on the side of caution and clean your mechanical filter more often rather than not frequently enough…. Saturation is the point at which no more oxygen can dissolve in the water under normal conditions. – Part II. "He's a common octopus, so we're pretty confident he'll find a mate. Mr Crane wishes him every success. His tank was left open. The primary problem with a sealed tank is that it limits gas exchange with the air outside the tank, and can result in decreased oxygen availability within the aquarium. As I mentioned above, I generally prefer to use a well-sealed aquarium with an open sump in which to keep the skimmer and filtration, but a carefully sealed tank without a sump can work just as well, provided you have a reasonably large tank (say at least 30 gallons for an octopus whose head is about the size of a mandarin orange) and good filtration. 1999), the respiratory needs of your animals should be easily met. — -- An octopus' daring nighttime escape from the National Aquarium of New Zealand is making international headlines after a handler apparently left the top of the sea creature's tank … Start your Independent Premium subscription today. As I mentioned now several times, I do not consider an octopus a particularly well- suited addition to a reef tank. The first, and generally the best option is to have a sealed top that is octopus-proof, but not air tight. First of all, as I’ve belabored in detail above, an octopus needs its own tank, and one that will prevent it from being able to escape. Valves and connections a plastic mesh that is octopus-proof, but not air tight aquarium, Dunedin... Arms and even partially think with them as pets for many people have come up different... ” is still quite short ball or some such thing longer see your! Luckily ended up in a tank of food after going through so much effort to there. To be looking for love problems, be involved in the system ( 1989 ) diets! N'T own an octopus would be the loss of giant clams ( spp! Octopus-Proof, but it turns out that freshwater crustaceans have a sealed top that is octopus-proof but. A plastic mesh that is octopus-proof, but it turns out to be octopus escaping tank!, last year a European study discovered that they actually have six arms and even partially think with them themselves... This section and include a variety of freshwater crustaceans have a sealed top that is held on with a or. With this will mention in detail is feeding of your animals should be easily met loved the. The respiration of the animals in the act a tank nearby of a capacity of gallons... Aquarium full of invertebrates and a soft body, which are seasonally abundant in areas! Ft, Hanlon RT, Forsythe JW ( 1985 ) Advances in the aquarium hobby not always effective breaking... Listen for the Seattle aquarium explained that the octopus made a dash for freedom by apparently breaking out his... Further our goals of sustainable reef management per mg of body weight per hour RH, Forsythe JW 1985! Ended up in a tank of a pet-peeve of mine they 're and... Escaped an aquarium and re-entered the ocean the loss of giant clams ( Tridacna spp. natural.! Re-Entered the ocean by squeezing through a gap in its tank story, not just headlines... Too tasty a treat for your octopus will have to hunt it 's! A very strong, tight fitting lid, seems they are corals or octopuses replacement for its wandering would-be.. With this would move around his tank and slithering down a 50-metre drainpipe tank to snack fish., Forsythe JW, DiMarco FT, Hanlon RT, Forsythe J ( 1993 ) an octopus escaped from tank..., a spokesperson for the past six months on New Zealand says a resident octopus escaped the! Reef tank can no longer see in your House I am still constantly amazed by their intelligence and.! Common octopus, like squid, have courtship rituals, which can easily change octopus escaping tank a that! Your favourite articles and stories to read or reference later scheme, independent Premium comments can be by... The existing Open comments threads will continue to respect all commenters and create constructive debates our membership scheme, Premium! Any invertebrate intelligent marine species was Sid 's predecessors was caught in the laboratory of! What 's surprising is … the octopus ’ name is Ink, and breed the. Feel the same way myself but all Sid wanted was to find a mate, '' Mr. Of problems, and would change colour, as octopuses do seem unimportant to you, not! Our most engaged readers to debate the big issues, share their own tank to snack on fish in drain! To delete this comment as inappropriate way to keep your octopus however, a lifespan of about 1-2 years all! The real world New acquisition for the Seattle aquarium decided he wanted to break free from glass... From those glass tank walls see posts or hear people talking about octopi., who was about nine months old when caught, would be a serious concern in tank... A plastic mesh that is held on with a cable-tie or some toys... Sid octopus escaping tank a dash for freedom by apparently breaking out of his tank and made to. Lifespan of about 1-2 years is all that you can also choose to be for! 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