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Hindenburg- O. Mercatoris

Omega

GPO
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Nov 30, 2009
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158
May I introduce you toooo...Hindenburg.

I hadn't planned on his arrival nearly so early, but when you ask for an octopus..some people really find you one. the water quality rocks and sand were ready..I'm just nervous on whether or not I am lol. He is supposed to be mercatoris but i haven't yet gotten a very good look at him. He does keep all his legs curled slightly at the end which I believe I read is a mercatoris thing. he is very white...kind of a bone color. after acclimation when I added him to my tank he was red for a short while then returned to white. He acclimated a little over an hour and a half then he became very active so I added him into the tank. He took about2 min to swim out of the pitcher he was acclimated in, he found a nice shady spot and disappeared for about 5 hours...then he popped up at the end of the pvc pipe(as you can see in the photo up there). He has been watching me ever since, i put my finger up to the glass in front of him and put a tentacle out of the pipe and touched the opposing side of the glass so I'm hoping this means he will be friendly. He has a small(1 inch roughly in diameter..too big?) crab(im not sure of species was listed as an "other") running around in there for his first meal.



tank:10g
3-4inches of sand in most places
~20lbs live rock
fluval canister filter rated for 100g
 

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Omega

GPO
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Messages
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He was the reason why I was worried about my tank setup last night..I found out yesterday at like 5 he was going to arrive today. I bought a few small deco's with holes he could live in...he seems to like the pipe. still trying to find my old barnacles. his only tankmates other than dinner are 10 turbograzer snails, I'm going to give him a day or two to settle before i add the serpent star in.
 
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:welcome: little Hindenburg!

Such a big name for such a little fellow. I am very interested, in the process of readying a tank for a couple mercs. I have never kept one before and am like a sponge at this point trying to soak up as much as I can. I look forward to hearing more of your experiences.
 

DWhatley

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I am not sure that's a merc :hmm:. The mantle spots are a bit disconcerting but it is never easy to make a good guess from a single picture. More behavior reports and photos when you can will help. Since he/she has taken the pipe, try a 1/4 inchish piece of thawed shrimp on a stick place in front of the den and see what happens.

When you acclimated, do you recall a ratio of arms to mantle? Did you notice any webbing along the arms? At this size that may not give a clear answer but I am curious.
 

Omega

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i cant see his legs very clearly, there is no apparent webbing..still in the pipe stayed the whole night i got up every two hours to check..didnt hunt the big crab or the hermit i tossed in about midnight. when i woke up at ~7 local time here there were bits of light starting to come through the blinds and hit the tank and i noticed he was feeling around the sand in front of the pipe with two tentacles then i walked up he retreated to the very back and then returned to the front of the pipe with my computer light came on..im thinking he isnt a merc and might be diurnal. his arms are prolly 2x or a little more longer than his mantle...which was at least an inch maybe bigger..he acclimated in a ball it was hard to tell, I have classes this morning but ill stop by a grocery store and find some kind of fresh shrimp and see if he'll take it.
 

Omega

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so i tried touching the glass in front of him to see if he would reach out to it and touch again and he did, there is very slight webbing at the very top of the legsbut not much at all. i think the legs are over 4 inches...still hant tell on the mantle he keeps it hidden well...hes always balled up..kinda like that vampire squid video


ran to the market early got some never frozen shrimp, in one video hindenburg already has a piece of shrimp and gets very angry at it, throws it out of his den and then starts blowing the sand around(i think the piece was to large to eat maybe or too cold)

in the second video hindenburg has a smaller piece of the same shrimp givent o him, he takes it..and i believe eats it. he at least hasnt thrown it out yet

http://www.youtube.com/watch?v=e07ambjDEDM

http://www.youtube.com/watch?v=QW19VAE_zMA
 

Omega

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he came fully out of the den once just before i left for school, his head isnt shaped quite the same as the mercs ive seen in the journals but i didnt have time to grab my camera. he returned to the den quickly and retreated further inside the pipe..im guessing hes going to bed for the day.
 

DWhatley

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I still can't tell much but the feeding video is a very good sign. The inside out look is characteristic of mercs but I have seen other (especially females and young animals) octos do the same thing. The little I could see of the arm characteristic (thin arms with small prominent suckers) could easily be merc. Roy recently posted a photo of a merc pair mating that gives a good visual of mercatoris arm characteristc as well as some of the common patterning.
 

Omega

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when i came home from class i could see him deep in the pvc, shortly after i got online though he came out. snapped two quick photos of him..hes now inside the plastic tank =p(i added in 3 plastic places to hide yesterday morning...just in case) every once in a while a tentacle pops out. I think the crab i put in there last night was under there so theres a chance hes simply feasting. hope these photos will allow a more adequate ID but im thinking he is a merc..other than the daylight activeness

hes pulling sea shells and marbles under the tank, im assuming he has found a new home.
 

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DWhatley

Kraken
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I hope I am wrong but ...

What do you know about where she came from? The arm shape is like a mercatoris but look overly long (often hard to tell for sure from a photo though). The body is either distended (like an egg carrying female or post brood female) or not mercatoris. Her color is better than, Trapper but the way the mantle has a front bulge and then stretched skin after looks a lot like what I have seen in post brood females (there is also a possibity that she is heavy with eggs and the collecting behavior would suggest that, however the daytime activity is one I have noted in end of life mercs).

Here is a link to my last photos of Trapper (mercatoris)
and here a link to KaySoh (briareus) showing the stretched out mantle (still with me but not for much longer).
 

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