i would like to create a feeder tank. usually through out the spring and summer i buy a few .13 cent goldfish for the rain barrel to keep mosquito larva out. if i bought 12 dozen (144) small gold fish with a airstone could i keep them in a 55 gallon drum for a month or so and use my rainbarrel as a feeder tank. obviiously i would be feeding them but i thought this would be a good way to avoid taking up space in the house with another aquarium. and keeping me from running to the lfs every week, and to try gut loading. thanks in advance.