Fluffys still going, and eating. If its senescence he lasting longer than i thought it would.
Id imagine that being as inteligent as they are they can find way to amuse themselfs. mine spends pleanty of time digging, moving shells around, and 'playing' with feeding sticks. Thats not to say they shouldnt be given more things to do. I have some floating balls in his tank and i used to have pvc pipe in thier. (I biol anything i put in the tank)
Im suprized the octos got along for that long; they dont mix well. How big was that tank?
I have made sure to never let the water get contaminated with metal. the water is a mix of RO and instant ocean salt mix.