I have used a cast net at my local pond and spill way.....i had netted baby bluegill,,perch,,catfish,,small mouth bass,,sun fish,,pumpkin seed,,..i had put them in a 125g tank..they were all about an inch long..i had them for 2 years and watched them grow,,it was an awsome experience..i even had a few friends who wanted a few and i gave them some,,within the 2 years the fish were almost 6 inches long...they were all great agressive eaters...i was catching bugs outside my house at nite under the porch lite and putting them in the tank..moths,crickets,beatles,slugs,worms,spiders..it was cool,,next spring i will catch some more !!!!