Cats fish farming is a very lucrative one especially back home in Nigeria as we all love the cat fish pepper soup delicacy which is popular all over the country. Cat fish farming requires lots of delicate process as little details being missed can lead to hazard to those fishes. Some security measures should also be taken against turning the fishes to preys of carnivores like snakes. This is one of the major challenges I've learnt from cat fish farming. Above all, it is a very lucrative business. Thanks for the educative write up brother.