Bobad, keep in mind that gambusia are prolific breeders. You will probably end up with them anyway (they stick to the feet of ML's water turkeys and populate all ponds) Gambusia will prey upon the small fry of all fish, that can be both good and bad depending on what types of fish you choose. Somehow the native grass shrimp found themselves in my pond too

Praise the water turkeys ! hahahahah....my close observations show that any shrimp ranks right at the top of any fish's diet !