[Octopus]: Nebula - O. briareus

DWhatley

Kraken
Staff member
Moderator
Joined
Sep 4, 2006
Messages
20,543
Reaction score
1,761
Location
Gainesville, GA
Sadly, no, I have never seen recovery when they become lethargic but my observations have been during senescence. Had he started refusing food or eating less? This is almost always the first sign of senescence, often a full month in advance of other symptoms. Their lifespans are not well studied but I would have expected this one to be with you for a full year.

I don't know of anyone using Pancur/fenbendazole in tankmate food or directly in the water with cephs so can't speak with any knowledge on its potential harm. An ammonia/nitrite spike would give symptoms but if it had not continued over a period of days I would not expect this lethargy. However, I would not discount the dewormer as the direct culprit. I used it (long ago) in a seahorse tank and lost a serpent star even after a full water and bottom substrate change (it tends to be absorbed into the rock and then leach out - partially why it is used for worm control in aquariums). I do use heartworm and flea poisons on my dogs but avoid any kind of poison control in or around the fish tanks (no aerosols at all) because cephs are so sensitive.

My only thought would be to move him to a bare QT with newly made water and see if there is any improvement.

Yes, being touched (mentally and/or physically by an octopus has a strong effect. If you have not done so, I will suggest Sy Mongomery's, Soul of an Octopus. (I highly recommend the book but if you prefer short stories/articles, This article and this article (written several years before the book) will give you a feel for the book (reading the articles will not be a complete spoiler for the book) .
 

creature55

Cuttlefish
Registered
Joined
Sep 13, 2015
Messages
19
Reaction score
5
Location
Toronto, Canada
Yeah I really do think it could be a direct effect of the dewormer. It was just such a tiny amount in such a large water volume that I ignorantly figured it would be alright. Hard lesson to learn :( I have noticed a decrease in appetite over the last couple of weeks, but that also is roughly the same timeframe as when I used to dewormer. I wasn't too worried because although there was a decrease, s/he was still taking food every few days.
S/he is still alive, but laying on her side in the net. Breathing looks very laboured, but still has colour in her mantle and webbing. What really convinces me that this is the end though is that her eyes are clouded over. Any idea if that only happens in senescent octos or does it happen when they are dying from other causes too? Anyway, with the state s/he is in now, I don't think there's any hope in a QT tank rescue. I would be surprised if s/he lasts til morning. I hope s/he is not suffering...I feel so bad. A marine biologist friend of mine suggested euthanizing her, but I would only feel right doing that if I knew she were suffering.
 

DWhatley

Kraken
Staff member
Moderator
Joined
Sep 4, 2006
Messages
20,543
Reaction score
1,761
Location
Gainesville, GA
I have never euthanized an octopus and have felt that all the pain was only my own but that is because I perceive their lackluster state as being without agony (rather peaceful in appearance). With a dog or cat (or most mammals) I think we have a good understanding of symptoms of suffering but an octopus is so foreign that I am not sure if we would recognize agony (or if they have an equivalent).
 

Forum statistics

Threads
19,743
Messages
203,694
Members
8,796
Latest member
Gil_Hof

Monty Awards

TONMOCON IV (2011): Terri
TONMOCON V (2013): Jean
TONMOCON VI (2015): Taollan
TONMOCON VII (2018): ekocak

About the Monty Awards
Top