What is an easy species of crab or shrimp to breed?

Question

I am getting an octopus and want to breed my own crabs or shrimp as a food source, what is an easy species to breed at home? I understand no species is necessarily "easy" but what is the most "reasonable" species?

Thanks

Answer 1

Probably "feeder" freshwater glass shrimp.

But even so, they won't breed and grow fast enough to feed an active animal like the octopus.  At my local pet shop, they were $1 for 10, a couple of years ago -- cheap enough to buy.