[Octopus]: Onn - O. briareus

Discussion in 'Cephalopod Journals' started by DWhatley, Feb 23, 2013.

  1. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    Still working on a name but on Thursday, I was honored with not one but two little guys to end our octolessness. This one was a live rock stowaway that escaped detection for several weeks, eating the crab livestock Kara and Philipp collect for sale. I knew I was getting this one and saw a preview photo but thought it was a bit older (eyes still show the bright blue circle of an animal that is maybe 6 weeks or less old). I was very concerned during acclimation as I could tell it was very stressed. Breathing was heavy anytime is would notice me and it stayed on the outer wall all day. By night it moved to the back wall behind the live rock but still did not den. Fortunately, by morning it found one of the two crabs and was struggling to pull it into the live rock and today I saw it elminiate its meal so I think it is adjusting :fingerscrossed: First posted pictures with my new Nikon P7200 (new camera, older model. My beloved Canon G9 suffered a fatal fall) ‚Äč
     

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  2. iAlex

    iAlex Vampyroteuthis Registered

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    Cute little guy, just a baby!
     
  3. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    Yes, I thought he/she was a little older from the photo and knowing it was in the system for awhile. NOT complaining mind you but survival is more of a concern. However, it is eating and took a piece of shrimp on a stick tonight so things are looking good. I am also glad that these are of different ages so I have a better chance of no losing both at almost the same time again.
     
  4. Teacher Kim

    Teacher Kim GPO Registered

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    Very cool! I like the way you have your live rock set up! Maybe that is part of my problem with Orange. The live rock is all across the back of the tank. Maybe I will try making a larger center area like yours. Good luck with both of them!!!
     
  5. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    So far so good with this one. She/he is taking a small piece of thawed table shrimp once we wake her up and she detects the stick and she has consumed at least one live fiddler. She poked her head out of the rock tonight and did not vanish when we showed her attention from outside the glass so I am breathing easier.
     
  6. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    Still poking her head up and observing her environment all night. She looks very alert and I am breathing normally.
     
  7. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    Onn (Pronounced Ohn like Ohm with an n and comes from Octopus with No Name - Neal's doing) is even more recluse (or so it seems) than other very young O. briareus I have kept. She has found that the LR in her tank has a convenient cavity that completely hides her from view. Eventually she will outgrow it but I search for arms daily to be sure she is OK. Her unfortunate name comes from the fact that we have seen no personality traits and needed to call her something other than Tiny :roll:
     
  8. sirreal

    sirreal Vampyroteuthis Registered

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    Very cool. I now see what you ment about Tranny being young. Looking at yours Tranny is about the same size and not much webbing.
     
  9. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    We made Onn fast on Saturday because she was not coming out for food at all (I normally don't start the one day with no food until they are older). We have been leaving crabs for her to hunt at night but she needs at least a little change of diet. It still too a lot of patience and the help of a white light to wake her up but she peaked out enough to see her eyes and took the shrimp AND the feeding stick. She dragged the end of the feeding stick (the acrylic kind with a bend at the end) into her den and even after two hours, she refused to release it. At lease we know WHERE she is and that she is doing well :roll:
     
  10. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    Waiting to be fed

    I posted more on Margay's journal but wanted to record the date on Onn's as well. Both octos were waiting to be fed tonight and aggressively took their meal. After their initial two weeks of acclimation both have been very reclusive and needed coaxing to eat. Onn often had to be given live food for her to hunt because she would not come out for the offered meal (she would eat it when we could get her attention so it was not the food itself). I am expecting that both will now expect food and need less coaxing and plan to journal the observation.

    As noted in Margay's thread, I initiated a poll to encourage other to capture similar timings.
     
  11. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    We still pretty much only see arms taking food from Onn (she eats well but will not be coaxed out of her rock to retrieve dead food, live she hunts at night) but when I cleaned her tank today in full daylight, she "defended" her den by showing her arms if I came near her rock. She did not come out to the daylight side but she did appear in the back enough so that I could see her mantle and eyes.

    I use "den defense" as a statement of being fully acclimated to aquarium life and hope this will be the beginning of more sightings.
     
  12. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    I'm guessing Onn is about 3 months old now. She is still rarely seen but eats daily with some encouragement (primarily waking her up, she is all about the food once she is awake). Saturday night we saw her actually out on the glass (a first since acclimation). Once she noticed us she went back to the LR but stayed visible. Tonight it took awhile to wake her up for supper but once she had her shrimp in arm she stuck her eyes and mantle out of the rock to look at me and did not go back in for a few minutes (may have stayed longer but we let the dogs in to eat and they don't walk slowly to their food :roll:).
     
  13. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    Yesterday I wiggled her shrimp around in the hole in one of the rock pockets to wake her up but did not see her for longer than it normally takes her to wake up. I happened to look down and notice that she was sitting in full view in an opening between the rocks looking at me. Tonight she came out of the same opening so I am hoping this means she is finally out growing the internal rock cavity and that she is gaining confidence in the outer world.
     
  14. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    Move to Big Boy Tank After 3 months Onn has pretty much outgrown his den that is internal to the rock in his 40 gallon tank. The tank would probably be OK for another month with different live rock but I have his final tank ready so I moved him today. Unfortunately, I took pictures with too much outside lighting so most have sever reflection. Onn's new home.................................... ............. Exploring new tank with nursery tank in background Exploring He (I think I saw a channel on the third right arm and he was keeping the tip curled but often other arms were curled as well) spent the day exploring and stayed out all day and into the early evening. He was a little difficult to feed but eventually took his supper. During his explorations he crossed over several times but stayed primarily on the right until supper time and then decided to hide on the left. I don't think he has found a satisfactory den yet. These rocks do not have internal cavities like in his original tank but there should be an appropriate set of choices.
     

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  15. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    Onn is starting to almost interact. He is out more and more during daylight (somewhere around 5:00 to 7:00) and occasionally in the middle of the day if he notices someone walking around. He is becoming less grabby and more curious but I have not attempted to pet his mantle when he holds on to my fingers. I will try to get some photos this week. Long rather thin arms and still a small mantle but appears health. He has appeared to take an interest in Margay over the last couple of months but lately, I have not seen them wall dancing together.
     
  16. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    Nine Month Update

    I have been trying to capture a photo of Onn to show the length of his arms but he won't hold still for the camera when he is spread out! Here are a couple of my attempts but they don't provide the information I was trying to capture. Each half of the tank is about 22" long and about 24" tall (below the hood about 23" to the water line). The connecting tubes are 4" long and we feel certain that he would not have to do much stretching to touch both ends while sitting in the tube if it ever occurred to him to try. His mantle remains on the small side but, oddly I have noticed it growing in the last month or so. I would expect this in a 10 month old female (he is somewhere between 10 and 11 months old having arrived quite young 9 months ago today). He has started to lose muscle in his arms but has only slowed slightly in his food intake. We did notice yesterday that he drilled a crab claw and liquified the contents instead of his usual method of breaking it at the joints. I have offered him skinned fresh salmon and small scallops this month and he ate both where he has occasionally rejected his normal shrimp so I will buy more of the softer food.

    I did manage to get a night, red light video that shows the grace of these animals. The speed is actual.
     

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  17. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    Another photo attempt at trying to show the length of Onn's arms. I tried to make a "flipbook" but the multi-select did not retain the order and I have yet to figure out a way to order/reorder the images in an attachment collection without attaching individually (yes, you can select and attach multiples now :grin:)
     

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    Last edited: Nov 21, 2013
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  18. sedna

    sedna Larger Pacific Striped Octopus Supporter Registered

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    Beautiful, D! I know what you mean by "flip book," John puts photos in succession to make "stutter edit" videos.
     
  19. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    Since we lost Margay, Onn has been more interactive. I am not sure if this is a function of age, if we paid less attention because Margay was diurnal and more interactive or if he is "lonely" without another animal to dance with at night. I took several videos tonight but most are overly long. This was the first of the series and Onn was already in the front "play corner". Over an hour period, Onn will come and interact for 3-4 minutes at a time, slide to the the "dark side", dance a bit on the glass and come back to the play corner if I place my hand back in the tank (when he goes to the other side of his den, I remove my hand). He has started to accept a light mantle "rub" and is putting a slight amount of pressure into my hand with his arms when he laces them into my fingers (I have come to believe this is equivalent of scratching and see it often in older animals). He still grabs a little but does not flee when he can't run away with my hand. I have seen no beak poking out,a sign I take for considering a bite and will end play if I see it.

     
  20. sedna

    sedna Larger Pacific Striped Octopus Supporter Registered

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    I'm jealous that you get in a mantle rub! Abe doesn't like to be touched- he'll play follow the finger as long as it's OUTSIDE the tank! Great footage!
     

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