Method for providing a nutrient-enriched aquarium waste-water for plant watering

摘要

A method for providing a nutrient-enriched aquarium waste-water for plant watering, comprising the steps of: adding a fresh clean water to an aquarium; determining a time point when the aquarium water becomes a waste-water deleterious to fish but rich in nutrients beneficial for plants; removing at least a portion of aquarium waste-water from the aquarium into a receptacle; and selling the aquarium waste-water as a plant fertilizer.