Can anyone recomend a fish or crustacean as a prolific breeder. I would like to breed a large number of fish maybe killifish and crayfish if possible. Shrimp and crab are also an option if they are not to difficult to breed. I will be getting my octos in the next few months or shortly after i am able to setup a breeding colony. So i was hoping some members here could recommend some species. I have never fed fresh water animals to a ceph before and i was wondering if its ok, in the past i just brought food from bait shops and the local fish market. And since i like fishing it would be a bonus to use the excess ceph food for fishing.