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What CAN live with an octopus?

bassman

Blue Ring
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Joined
Nov 13, 2006
Messages
42
I am getting ready to set up a new tank for my octopus that is living in my invert only tank. I am just curious as to what I can actually put in the tank with him. i.e. star fish, snails, slugs, plant life, etc.

Is there anything that can co-exist with them?
 

DrBatty

GPO
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Aug 2, 2006
Messages
148
Mostly, it's hit or miss. All octos are different, so even though one of us could have great luck with stars or slugs etc., another person may have a completely different experience introducing a tank mate.
I had stocked my octo tank with black foot trochus and hermit crabs prior to my octo's arrival, thinking they would be food at some point.....but they are all still alive and he pays no interest to them. However, some people on this site could tell you their octos have eaten plenty of hermits.
A few months ago, I did introduce a chocolate chip star to the tank. My octo was clearly not thrilled about this five-armed moving thing, and spent the first 48 hours harrassing it and trying to pry it off the tank wall....could have been curiousity, I'm not really sure; but they live together just fine now.
Make sure to research the animals you are interested in keeping in your ceph tank - some can give off toxins when stressed or dying which could ultimately wipe out your whole tank, others could hunt your octo [Fish are generally not a great idea for tank mates]. But always keep in mind, whatever you put in there could end up being dinner for your octo one day, so I'd recommend not spending too much!
 

bassman

Blue Ring
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Nov 13, 2006
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42
Thanks, I certainly don't want anything that could hurt him.

I have had 9 chocolate chip stars (Harlequin food) in his tank since day one, one hermit he could care a less about and one shrimp. I feed him one glass shrimp a day and he eats those right up so I am not sure why he won't touch the other shrimp I have in there. Maybe they are pals LOL

I just want to find something else to put in his tank because he is nocturnal so we only see him after 8:00PM.

How about plant life, any experience with anything along those lines?
 

DrBatty

GPO
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Aug 2, 2006
Messages
148
i think some ceph keepers here like to put some caulerpa in their tanks, but I have zero experience with this.... :smile:
 
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Oct 13, 2005
Messages
511
I have caulerpa, and red kelp in my bimac tank. he pays no attention to it. Except that the red kelp is obviously red, which octos cannot see. I think it kinda freks him out a little bit when he bumps into it.
 
Joined
Sep 8, 2006
Messages
2,390
Caulerpa is probably the easiest macro to grow, but it takes extra effort to maintain. It will take over if you don't prune it regularly, plus portions of it will die off and if you don't remove those parts before it dies off, it will ruin your water quality. Plus, as Dan pointed out in another thread, it is illegal in some states because of the fact that it takes over if not properly discarded.
 
Joined
Sep 8, 2006
Messages
2,390
Serpent Stars are considered an acceptable tankmate, if you can find a red serpent star they are very brightly colored and grow pretty big, fun to watch move around when they sense food.

LiveAquaria.com sells them... :smile:
 
Joined
Dec 1, 2006
Messages
9
As weird as it may sound i have skunk shrimp, and a frogfish and about 10 hermit crabs, he touches none of them at times he has even played tag with the frogfish but as soon as I throw a fiddler crab in the tank its chow time!, I know this is not the norm, but I guess its all about the feelings of the octo!
 

cthulhu77

TONMO Supporter
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Mar 15, 2003
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6,638
Some members of Tonmo have had seahorses, fish, and even rays in tanks with their cephs...it really is dependent on the particular cephalopod. Most of us err on the side of caution, but certainly serpent stars are alright. (whoa...say that three times fast)
 

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