I have had my Green octopus for 3 months and one week yesterday he died. He was at the LFS for about 2 weeks after he got there. I have had no trouble out of him at all was eating great feed twice a week. He was up playing on the side of the 58 gallon tank. He was very small baby from what I could tell. I went back down to him later in the day and he was dead. No bad smell still soft no arms missing nothing just like him dropped off the side of the tank and died. This tank has been running for well over a year with no copper in it at all. The levels on the tank were fine the snails in the tank are still alive. There was no color change in his dead body. He always took to the water changes just fine. There was no water change during this time of his death was done about a week ago. So my question is what could have caused my little guy to go to that big water? There were no eggs laid while I had her. But any ideas on this would help I know about the life span of these guys but didn't see this one coming after so short time with her.