Feeding live freshwater crayfish, bad, good? Really bad?

juicy_squid

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#1
Greetings oh respected scholars of Teuthology,

I come before you humbly today to ask thee of a question.

I know this probably a big no no, but just for sure I wanted to know. Can I feed the octopus a crayfish that I caught from a local river? And how about crayfish from the L.F.S.? I would also like to hear your opinion on salt water crabs, for example, emerald crabs, wild caught small seashore crabs. (to tell you the truth I sort of want to see some action, and the other students are pressuring me to do so, but I still stand true to the fact that the octo's health and well being comes fist and foremost) I used the very convenient search, but could not find anything.

Thank you very much
 

monty

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#2
the "standard response" is that freshwater animals are like candy: the octo will enjoy them, but they don't have the proper nutrition for a long-term healthy diet.
 

Shkuey

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#3
Standard response #2: Freshwater fish from a fish store may have been medicated with copper, which is fatal to an octopus.
 

sedna

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#5
That would be their standard diet. There's nothing wrong about enjoying watching natural feeding behaviors- especially when you go to the trouble to feed them a natural diet!
 

forever27

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#7
I fed my aculeatus live freshwater crayfish every 3 days and he lived (with me) for 9 or 10 months. It's the only thing I fed him. I work at the LFS around here, and I know we don't put copper in our freshwater tanks...so I guess that knowledge is to my advantage. Ask if your LFS uses copper with the feeder tanks.
 

bluespotocto

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#8
I heard if you really want to see some action, try some salt water shrimp. Some octos will eat them and some wont, but they are fast and there pretty cool to watch if your octo will catch them in the daylight.
 

Thales

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#9
Freshwater crustaceans seem to be fine while freshwater fish are not. Its got to do with the fatty acid content. There is a link to a study in the last thread this was discussed.

The problem with LFS fish, mostly feeders, is not that the LFS treats them with copper (some do, some don't) its that they are treated with copper/other bad things for cephs at the breeder/wholesaler almost universally.
 

DWhatley

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#10
Of your list of choices, by all means feed the local crabs and suggest to your over enthusiastic classmates that if they bring in a few live crabs, they can feed one to the octo :sagrin:

If fiddler crabs are in good supply, they are probably the most universally accepted, most dietary suitable and most action for the money food you can provide.
 

Nancy

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#13
We've had big discussions before on these forums about crawfish and whether feeding only freshwater food will harm your octopus. The conclusion was that you could feed crawfish, but more as a treat and feed saltwater food such as crabs as the main food.

Crawfish are essentially freshwater lobsters, so they have a lot in common with the saltwater crustaceans we feed our octopuses.

Interesting that your aculeatus survived so long on only freshwater food, forever27. Were there amphipods and other things he could eat in the tank?

I also mentioned at the time that some of the crawfish are as large as small lobsters (at least they are in Texas!). Choose females and smaller crawfish so your octopus doesn't risk damage from the claws.

Nancy
 

gholland

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#14
Nancy;133632 said:
We've had big discussions before on these forums about crawfish and whether feeding only freshwater food will harm your octopus. The conclusion was that you could feed crawfish, but more as a treat and feed saltwater food such as crabs as the main food.
This "conclusion" still seems odd to me considering the number of ceph hatchlings raised on PE Mysis.
 

forever27

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#15
Actually, come to think of it, that's a real possibility. When he was in the tank I never saw amphipods, but now that Lennon's in the tank I see them. I still think that crayfish aren't a bad staple diet. The downside with them is that they die quickly in saltwater, so if your octo isn't already eating aggressively and its waiting until the night to eat...they may not be worth it. And with the males, I just pulled off the claws before I fed them to him.
 

DWhatley

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#16
gholland;133637 said:
This "conclusion" still seems odd to me considering the number of ceph hatchlings raised on PE Mysis.
More interesting, perhaps is checking the signs carefully on the fresh raw shrimp available at your grocery. At Public's in Gainesville, I can get either Aquacultured or pink wild caught. The butcher said the pink wild caught were raw and I bought a couple to examine them. I have NEVER seen an opaque raw shrimp and believe these are partially cooked as the meat is not at all like raw shrimp. The Aquacultured are fresh water.

There have been a couple of attempts to locate the fatty contents of fresh vs saltwater crustateans but no one has come up with numbers and a translation to what the numbers mean for a saltwater animal's diet.
 

juicy_squid

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#18
Wow, thanks guys this is all valuable information.....keep going my brain is soaking it up......oh just to tell you guys I caught a chromi (with my bare HANDS!) from the sump and put it in a glass jar and put it in right next to the octopus, he was so excited to see some real game his head was bobbing up and down like mad. He didn’t wait a second to get inside and liquefy his juicy flesh, mean while the whole school is witnessing a brutal killing, something they thought was something that national Geographic’s couldn’t beat. The fish put up a noble fight, but in the end, the brissle worms had the last laugh. Gladly he ate the whole fish, except some sink, considering the fish was the size of his mantle. Then for some very strange reason right after eating he completly slaugtered a turbo snail. He never bothered them before. He ripped his guts out and proudly showed them off by jetting around with them. Then he discared it to brissle worms, not even taking one bite. Killing to please? Killing for pide? For fun? We will never know, except you guy jessgifnerrgah ah ahgah!

Just wanted to shared that with some octo freaks
 

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