Previously i had read somewhere that different species of octopus will usually ignore each other. In contrast i have read that all cephs eat other cephs.

So my question is when housing multiple cuttles together - are you better off housing same species specimens which have been reared together - or - different species around the same size?

In th Underwater World Singapore, they house latimanus and another species, officinalis I think. the temperature is roughly 23 degrees C if I'm not wrong and they're all the same size.