m8298 said:But how difficult is it to get them to actually breed?
Getting two Octopuses to mate is probably the easiest part of the process. Here are a couple of articles about
GPO's breeding at the Seattle Aquarium:
Basically it's just a matter of keeping a male and female of roughly the same age in a situation where they can see/sense each other - but not eat each other! When the time is right the loving couple should indicate through their behavior that they'd like to get together for something other than dinner.
Assuming that everything works out the male will probably just wander off and the female will start picking out a brooding den.
The hard part comes later.