[Octopus]: Meet Owen

Discussion in 'Cephalopod Journals' started by Owen, Oct 17, 2017.

  1. Owen

    Owen Pygmy Octopus Registered

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    Hello World! Meet Owen. We have had him in his new house since September 6th.
    He is not a very big octopus, we were told he was an O. Aegina but that was by the fish wholesaler. He seems to be diurnal, he is active throughout the day and seems to put himself to bed when you turn the lights off.
    He enjoys shrimp, scallop and crabs and seems to only eat if he is hungry.
    He is not very shy. He will sit on the glass when I clean the tank and climb on my hand when I reach in.
    IMG_2630.JPG IMG_2646.JPG IMG_2660.JPG IMG_2603.JPG
     
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  2. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    :welcome: Owen! My guess would be closer to one of an animal in the abdopus complex and highly likely O. aculeatus. The arm to mantle ratio looks way off for O. Aegina. Here is a link to some of the Media images of aculeatus to use for comparison. Have you been observing Owen's third right arm (clockwise as you orient your eyes with the octos) for the typical protective curl of a male? In one photo all arms are fully out stretched but the last photo suggests he is keeping it curled.
     
  3. tonmo

    tonmo Titanites Staff Member Webmaster Moderator

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    :welcome: Owen! Our Journals have been a bit quiet lately; so nice to have a vibrant octopus in the house! :octopus:
     
  4. Owen

    Owen Pygmy Octopus Registered

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    He definitely protects his third tentacle. IMG_3368.JPG
     
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  5. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    Great shot showing both the protective arm curl and the blue/purple sucker tips (a non-defining but notable trait of aculeatus). I added it to the thread on sexing an octopus
     
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  6. Owen

    Owen Pygmy Octopus Registered

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    Not sure if this will work but here is a video of Owen catching a crab
     

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  7. tonmo

    tonmo Titanites Staff Member Webmaster Moderator

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    Great vid!!

    Soon we will have a forum upgrade and embedded videos will appear much more naturally. You are also encouraged to upload any pics and vids to our Media Gallery :smile:
     
  8. Owen

    Owen Pygmy Octopus Registered

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    Owen IMG_5152.JPG is ready for Halloween.
     
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  9. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    Cute but I would be concerned about the paint in saltwater.
     
  10. tonmo

    tonmo Titanites Staff Member Webmaster Moderator

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    ooh - are we sure it's paint! love the pic.
     
  11. Owen

    Owen Pygmy Octopus Registered

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    Got it from the LFS. Marine safe.
     
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  12. tonmo

    tonmo Titanites Staff Member Webmaster Moderator

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    Makes sense. Love it!
     
  13. Owen

    Owen Pygmy Octopus Registered

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    I'm getting concerned with Owen. He has stopped taking frozen foods from the stick and if I had to guess his last two crab kills were just kills and not to eat them. His habits have also changed. He seems to spend more time in hiding and less time out and about. The water tests fine and I changed 50% over the weekend to be sure.
    I know with female octopus, it is easy to tell when the end of life is drawing near but with males is there a key indicator I should be looking for? (Asides from lack of appetite and behavioral changes)
     
  14. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    The most common observation for senescence is loss of appetite followed by fully not eating. However, you do need to (as you have done) try offering a change of diet when this is observed as we do see a reversal of the appetite problem with a change of menu sometimes.

    Sometimes they will start doing very strange things near the end (wandering aimlessly around the tank, trying to leave the water, moving objects with no obvious intent). One of mine moved mounds of sand from one side of the aquarium to the other. I had to laugh (and video) in spite of knowing why I was seeing the behavior.

    You might remove the pumpkin if the behavior started after it was added just to see if anything changes. I never quite trust the "aquarium safe" stuff that is painted but I cannot give you examples or written evidence to defend the concern.
     
  15. Owen

    Owen Pygmy Octopus Registered

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    We even went and bought him a shrimp for a tank mate and it hasn't gotten eaten like we hoped.
    The pumpkin has been in there as long as he has. I can take it out but it has been 6 + weeks with no effect.
     
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  16. tonmo

    tonmo Titanites Staff Member Webmaster Moderator

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    :neutral: Makes sense to remove. Maybe over time some materials from that pumpkin seep into the water. Please keep us posted on this one.
     
  17. Nancy

    Nancy Titanites Staff Member Moderator

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    Removing the pumpkin is worth trying. You don’t have any other things to try. Besides, Halloween is over for this year!

    Nancy
     
  18. Owen

    Owen Pygmy Octopus Registered

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    He hasn't eaten in over a week now. A few examples of behavioral changes, he jets around the tank more than I have ever seen him, he used to wander around the glass and rarely jetted anywhere. He seems to have relocated from his cave to sleeping under a rock ledge. At times he will go around like he used to but that is getting rarer and rarer.
     
  19. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    Behavior changes, particularly restless/aimless wandering are a sign of senescence. However, the same symptoms occur when the water is uncomfortable. You might try another large water changes since you have removed the pumpkin and double check your salinity and PH.
     
  20. Owen

    Owen Pygmy Octopus Registered

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    75% water change this weekend. Salinity is 1.024 and pH is 8.2. Everything else is 0.
    All of the tankmates are fine, starfish, snails, clams. Not looking good...
     

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