Combine a garden/standard 10-gallon aquarium into an aquaponics ecosystem. The fish feed the plants/the plants clean the water. Includes custom grow-bed housing, pump/timer, clay pebbles, plumbing components, light-bar/detailed instructions
VWR* CENCO Resonance Apparatus is a thorough re-engineering of a wellknown, acoustic experiment to improve the precision and scope of the experiment, as well as to considerably improve the convenience of its operation.