[Octopus]: Taco - O. cyanea ?

Oceanic Art

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got my new octopus a few days ago. As soon as I put him in the tank he cruised around for a bit and ate one hermit crab. It's been three days and he hides under a rock and hasn't touched anything else. If anyone knows the species fish store said "common octopus" not sure origin.
 

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DWhatley

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Can you find out the ocean of origination? Is there is a definite round dark spot below each eye? It would be unusual but the white spots on the arm, what appears to be a false eyespot and the general look of vulgaris have me wondering about O. cyanea. More pictures will help since octos have numerous "looks" depending on mood and substrate.

It will need much larger food than hermit crabs. Try offering a small table shrimp (about the size of the two eyes across, you can offer a piece of a larger one, it does not need to be the whole shrimp) on the end of a feeding stick (bamboo skewers work well). You can also try live fiddler crabs (any small live crab is usually irresistible), the cracked claws of blue crabs (I find them at my local Asian market where I scrounge the already separated claws in the live crab bin - avoid giving other parts as it will foul the tank. The claws can be frozen and thawed for later use), and pieces of raw fish. Pretty much anything raw from a fish market is worth a try. If it seems disinterested, gently try to touch the suckers with the food.

@mucktopus?
 

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Amazing advice!!! He's pretty much been in hiding since we've gotten him, so I will post pictures once I get some.
He seems happy, I have lots of hiding spots and he's chosen to set his den under a large rock. I can see that he is leaving his spot throughout the night because I have a best cam set up. I'm keeping the water at a 1.026 and testing for nitrates and ammonia. Any suggestion on what to do if nitrate is slightly high?
 

DWhatley

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We don't worry much about nitrate so just regular water changes to keep it in check. Ammonia and nitrite, however, need to be 0. Even a slight elevation will cause stress or death. If you are experiencing a bit of nitrate, it sounds like your tank is well cycled and THAT is a good thing :biggrin2:

This definitely looks like a medium to large species and most will be visible during the day. Keep in mind that they do not fully acclimate for about a month and we usually see quite a behavior change after that adjustment. Sometimes they become more active and interactive and sometimes the opposite. Anecdotally it seems to depend upon the individual animal more than on the species or environment.

I think I am jealous, beautiful animal!
 

sirreal

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Great looking octo. Look forward to see many more pics. Congrates!!
I agree D. Body shape and eyes sure look like a vulgaris. But that color?? also the suckers are off. They are grey which i have not seen before. i will have to look up O. cyanea. Trying to learn how to tell the different species.
 

Oceanic Art

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Here's a video captured this morning, the octopus seems shy although I did manage to feed him a piece of shrimp yesterday. It seems like whenever I'm not around he's cruising and happy so I'm patient and look forward to more interaction but happy to see he's healthy and going for food.
Also, I've heard different opinions on this; I live on the ocean (North Atlantic) and wondering if I can put in a small crab (once I disable its claws) or a small urchin. The shoreline I live on is used for lobster fishing etc so I assume the quality of the food found here would also be suitable for an octo? Any thoughts on this? He seems to really like the shrimp you suggested, but also know how much they like to hunt and mine seems keen on it.
 

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Oceanic Art

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Ok I'm ha
We don't worry much about nitrate so just regular water changes to keep it in check. Ammonia and nitrite, however, need to be 0. Even a slight elevation will cause stress or death. If you are experiencing a bit of nitrate, it sounds like your tank is well cycled and THAT is a good thing :biggrin2:

This definitely looks like a medium to large species and most will be visible during the day. Keep in mind that they do not fully acclimate for about a month and we usually see quite a behavior change after that adjustment. Sometimes they become more active and interactive and sometimes the opposite. Anecdotally it seems to depend upon the individual animal more than on the species or environment.

I think I am jealous, beautiful animal!
I'm having a reading of 0.1ppm of nitrites. I'm stressed on this, been doing 2, 10% water changes a week and I need help trying to get these levels down. Any help would be amazing. Thank you
 

sirreal

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Ya no worry about such low No3. Most of us are 10ppm or more. With Casper and how much she eats I have to do 25% per week to keep it under 40ppm so your good.
I see no reason why local crabs wont be a perfect food source for your octo. I am sure He\She would love the hunt. I have posted some vid of Casper taking down 5+" blue crabs and she loves that more then anything. You will be amazed as to how big of a crab they can take. From the pics I would say you could give up to a 3" crab "with the claws gone" What I do is the claws have 2 clasps and I use a pair of pliers and pop just one of the 2 claps off by crushing it. That way the octo gets the meat in the claw. Claws are our fav part so I would think they like them 2.
 

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