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Air Stone

DWhatley

Cthulhu
Staff member
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Sep 4, 2006
Messages
19,908
Location
Gainesville, GA
#1
I have seen both positive and negative comments about using an air stone in an octopus tank but have not seen the reasons why NOT to use them.

We are debating between adding an open air stone, an air stone in an up lift tube or a power head in a lift tube. If we use the lift tube it would be attached to a DIY set up with plastic pipe and a filter bag to allow draw from the bottom of the tank under the live rock without an actual under gravel filter.

Any input with the best way to evacuate CO2 is most appreciated.
 

jc45

GPO
Registered
Joined
Dec 4, 2005
Messages
105
#2
To help answer one of your questions, my information is that sometimes bubbles can get into an octo's mantle and throw his bouyancy system out of whack. Not being a ceph keeper myself, I don't know how frequently it happens or if there's a way to "cure" it.

Joey
 

main_board

Vampyroteuthis
Supporter
Joined
Feb 5, 2003
Messages
373
#3
Definitely go with the air lift idea (air stone inside a tube). You do not want air bubbles getting into your octo's mantle. They are easy to make and install, and I would guess simpler than trying to enclose a power head (though I have never attempted to do so). By far your best option.

Cheers!
 

AprylWillis

GPO
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Joined
Aug 23, 2006
Messages
112
#4
I have a cascade, where the water flows from the top, aimed downward. Is this just as dangerous for bubbles getting stuck in his mantle? We have the water flow on a low level for the baby octopus to adjust. Also, We had some trace of nitrates in our water system. Will he be affected much by them? How much can he endure? We took care of it immediately by putting in some live sand for our 55 gall. Also, we rigged our protein skimmer and the water flows even better than the commercial one. Was this a good idea? He'll have excellent water conditions by far.
 

Jean

Colossal Squid
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Joined
Nov 19, 2002
Messages
4,218
Location
Dunedin, New Zealand
#5
AprylWillis;80072 said:
I have a cascade, where the water flows from the top, aimed downward. Is this just as dangerous for bubbles getting stuck in his mantle? We have the water flow on a low level for the baby octopus to adjust. Also, We had some trace of nitrates in our water system. Will he be affected much by them? How much can he endure? We took care of it immediately by putting in some live sand for our 55 gall. Also, we rigged our protein skimmer and the water flows even better than the commercial one. Was this a good idea? He'll have excellent water conditions by far.
Your cascade should be fine, most of the bubbles will be at the surface as withan airlift. Nitrates MUST be 0, cephs are v sensitive to them. Live sand will definitely help! Your system sounds good. Just one thing though you'll want to get some mesh over the outflow on your cascade! ANY gap and they'll go exploring (even against the water flow......been there ..done that! :roll: )

J
 

cthulhu77

TONMO Supporter
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Mar 15, 2003
Messages
6,642
#6
The less the bubbles, the better off you are. Octos are somewhat like perpetual children, and even though the stream of bubbles can be dangerous, they'll still play with them.
 

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