Success of keeping some caught - collected creek minnows in aquariums depends on the fish species, what you have available to properly feed it and your ability to maintain good healthy water quality in the aquarium. Numerous stream minnow species can be kept in the aquarium. Not to over crowd them and maintain good water are very important items for success. Knowledgeable and careful aquarium guys can even get numerous minnow species to spawn in the aquarium. Snipe got spotfins and I think red shiner to spawn in his aquarium. FHM easily will spawn in an aquarium. Some stream minnow shiner species have specific needs to spawn in an aquarium habitat. Moving good water quality is paramount. There should be good information of how to do it on the internet of how to maintain lots of different minnow species in an aquarium. Know the fish's needs then imitate those needs. Lots of the stream shiner species will not spawn in a still water pond.