- Mar 21, 2004
Hello, I am seriously considering getting an octopus. I have done a lot of research and currently have a 20 gallon saltwater tank with a few clowns and tangs. My first question is, is a 20 gallon tank large enough for any species of octopus? I have plenty of live rock and hiding places, but will one outgrow this? And my second is about the Blue Ring octopus. I understand they are very venomous, but besides that what is there major downside? Are they harder to keep or shorter lived than an average octopus?