Octopus joubini (Atlantic Pygmy Octopus)

gillsandfins

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Hello All,

I'm new to this forum and I'm interested in aquiring a octo. Does or has anyone owned a Octopus joubini as a pet? I have found an online retailer that has them in stock. Will this make a good pet or should I be looking for another kind?

Any info would be great.

Thanks

Jake
 

daddysquoc

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:welcome: to TONMO.

O.joubinis, like many dwarf species, are often nocturnal and short-lived. If possible, i would look into another species.
 

monty

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a few years ago, a lot of the octos sold as joubini were actually large-egged mercatoris, for what that's worth. People kept them occasionally a few years ago, but I don't think we've seen any recently. They do seem to be quite similar to mercs except for egg size.
 

DWhatley

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Jake,
You have a LOT of reading to do! Start with the articles (link on the banner) and take a break by reading the experiences of two new members acquiring their first dwarf in the last week:

http://www.tonmo.com/community/index.php?threads/10187/
http://www.tonmo.com/community/index.php?threads/10183/

It is unlikely that the octos (in spite of the description) are O. joubini and much more likely they are O. mercatoris (which is a good thing). Edit - I see Monty has mentioned this while I was typing.

If you are ready and willing to read through some longer histories then read these journals and the links within the journasl that refer back to the parents and grandparent:

http://www.tonmo.com/community/index.php?threads/9144/
http://www.tonmo.com/community/index.php?threads/9449/

While you are doing that, you might also want to pick up the newly released book authored by two of our staff:

http://www.amazon.com/Cephalopods-Octopuses-Cuttlefish-Home-Aquarium/dp/0793806585/ref=sr_1_1?ie=UTF8&qid=1229232478&sr=1-1
 

gillsandfins

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WOW!! Thanks for all the fast replies. I looked over most of the posts in the links. I have a 250 reef system with a 20 tall linked to it which has been drilled. I'm currently using the 20 tall as a frag tank and was thinking of putting an octo in it. So what can you tell me about O. mercatoris?

Thanks

Jake
 

DWhatley

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Anything I can pass on to you about raising mercs can pretty much be found in the last link I posted above as that link and the connecting histories are my personal experiences. The first two links (to our new keepers journals) include some of my recent, uh, coaching :smile:.

I have not experimented with any corals with the mercs and only a little with the hummelincki (my diurnal octo) so I can't give any first hand experience on what to avoid but I would reconsider using a frag tank if you have recent cuttings as the water is likely to have a lot of stinging cells. Additionally, if you need to have a light on the frag tank for the corals, you will likely never see your octo. My best successes with interaction with the mercs has been with a red light only tank.

In a conch shell, I can tell you that they find barnacles and live rock acceptable homes, they are very shy and only a few will interact regularly. The twenty is a good size. You need a minimum of octo-proofing (lowering the water level and a loose fitting top seem to be all that is needed for this species ONLY). I recommend using a red velum (either on the light it self or over the transparent part of the top) to change your lighting (LED's work but the velum filtered light seems to be antecdotally better), leave the red light on 24/7, feed them live fiddlers several times a week and attempt to stick feed (one of our newest keepers found that a straw works very well) a small shrimp of some kind daily. Lastly, keeping them where they can observe you on a regular schedule but where there is not a lot of fast movement and nightly taking the time to sit in front of what will sometimes seem to be an empty tank will likely give you the most enjoyment from your individuals personality.
 

DinoIgnacio

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Great advice D! Wow, you covered all the important points in one paragraph! Brilliant.
 

gillsandfins

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I have to agree with Dino. Well said. The 20 tall I want to put one in is currently a frag tank, but if I were to get one I was planning on moving the frags to a different tank. I have everything needed to keep one except a place to buy one. Is there an online retailer or breeder that you would recommend? Would the red light used for reptiles work or wold that be to much? one more question. About how large do they get? I have a book with a little information on dwarf octos and it gives a broad range of 8 in. is this close?

Thanks for the help.

Jake
 

DinoIgnacio

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I highly recommend the Cephalopods book by Nancy and Colin. http://icanhaz.com/cephalopods
It's great and informative reading cover to cover! It covers everything you need to know about the more popular breeds of octopodes.

Mercs don't grow too big, they have an average mantel size of 1.75 inches. and have 2-3 inch arms.

You probably want a small LED lamp as the red lamps that are used for reptiles generate heat. Your octo will prefer a temperature of the lower 70s. I use one of these http://www.petdiscounters.com/Marina-Micro-LED-Aquarium-Light-Red-p7280.html
But after reading what D wrote, I think I will try red vellum over my other lights as well.
 

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