Culture of fish food organisms

Unit 5 - Infusorians

5.2.5.Banana peel culture
Fill a gallon jar with clean, filtered pond water and add a dried banana skin. After two days the skin will have sunk to the bottom and a heavy bacterial scum should cover the water's surface. At this time a very small quantity of old culture water or old aquarium water is added. After two weeks infusoria will normally be in evidence as the water clears up, and the culture water can then be used as a source of food.