thinking bout geting an octopus...newbie Q's

Discussion in 'Octopus Care' started by gohan, Jan 13, 2003.

  1. gohan

    gohan Larval Mass Registered

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    i have a 90 gallon tank and 2 filter/pumps that can handle 150 gallons each... how frequently would i need to change the water? since it is a fairly large tank, i'm thinking 25% every 3 weeks should do it.


    i've heard that it is nearly impossible to tell between a venomous octopus and a non-venomous one... is that true?
     
  2. Nancy

    Nancy Titanites Staff Member Moderator

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    Hi Gohan,

    That's a nice big tank! You don't say what kind of filtration you're using, but most people with octopuses use a protein skimmer in addition to other sorts of filtration.

    There are various theories on water changes. The most common seems to be 10% every week or 20-25% every couple of weeks.

    Your question about poisonous ocotopuses: All octopuses have venom, because that's the way they kill their prey. The ones sold as pets are not a problem, except for one (Blue Ringed Octopus) that is sold very rarely. Please look at a reply I did for a mail bag enquiry on September 16,2002 (http://www.tonmo.com/letters.php) for more information on this subject.

    Nancy
     
  3. gohan

    gohan Larval Mass Registered

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    i was thinking of putting a vulgaris in the 90 gallon tank...how big do they get?
     
  4. Colin

    Colin Colossal Squid Supporter

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    mantle to 25cm and arms to 100.. big octopus potential!

    Cheers
    C
     
  5. gohan

    gohan Larval Mass Registered

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    hmmm, 90 gallon tank sounds too small for that... what would fit into a 90 gallon tank comfortably?
     
  6. Colin

    Colin Colossal Squid Supporter

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    Probably better go for something like Octopus bimaculoides which is diurnal and gets to about 12cm mantle and 35cm arms, much better all round :)

    C
     

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