Im back after awhile with a new screen name. Couldnt get my password to my old one. My old one was vegetell. I have a 55 gallon tank that i had a pygmy for but he died. Then i converted it to a fish tank and currently houses fish not for a octopus and i used copper safe in it. Well after the fish i got into seahorses and i still am. i have a 55 gallon tank for seahorses. I also have a thirty gallon tank cycled for 2 months. Its a 30 gallon tall. I was wondering if that would be ok for a pygmy octopus. My local fish store gets them in all the time and i would like to try them again but in the thirty gallon in about a month. The thirty gallon housed 6 wild caught seahorses and currently has 6 ocean rider seahorses that are going to be moved to the 55 gallon over the next month. So is it ok for the 30 gallon tank to house pygmy octopus?