Urgent advice needed

qiazopus

Blue Ring
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Jul 12, 2019
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Hi all, I've described some problems I'm facing with the octopus.

They are sick and I don't know why - no one has bred this species (Octopus berrima) successfully so I'm not sure if it's because this species is more fragile or that I'm doing things wrong.

The system is completely flow-through set to about 4-6L/hour and I've been cleaning the excrements once a day. There has been plenty of poop and shed skin.

Please read it here with photos: https://tonmo.com/threads/octoproofing-glass-tanks.47157/page-2#post-239377

:disappointed:
 

tonmo

Cthulhu
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sorry you are dealing with this @qiazopus ... I wish I had guidance; hoping an expert here can offer some insights.
 

pkilian

Wonderpus
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You could try doing some water chemistry on the system. I would be surprised if the water quality was poor considering its a flow-through system but it doesn't hurt to check. Also, what is the pH, salinity, and temperature on the systems? You could also check phosphates and put some cuprisorb in the system to see if there is any copper in the water, as well as some carbon if possible.

It's hard to tell exactly what is going wrong with the system until we can get some more diagnostic information.
 

robyn

Vampyroteuthis
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Jan 19, 2007
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Honestly from what you reported on the other thread it sounds like the animals got hot and stressed during collection and they are dying because of the extended stress. I think it's less likely to be water quality if the facility (is this at SIMS? I don't recall exactly where you are) is holding other animals in flow-through without problems. The pictures your posted look like large, borderline senescent animals that are going to be very susceptible to extended periods of stress. I'm not sure if you have any left from your post on the other thread, but I would recommend euthanasia of any of them looking that poor, and starting over when you can collect in cooler conditions.
 

robyn

Vampyroteuthis
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Also is the flow-through rate you listed (4-6L/h for the whole system) correct? That seems very slow to me and I wonder if the animals are accumulating chemical waste in their enclosures. For reference, I have an octopus system that turns water in each enclosure at ~750mL/min.
 

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