Also Can flowers be watered with water from an aquarium? Somewhere I heard that aquarium water is useful for flowers. I think maybe you shouldn't pour it out just like that? I think nothing terrible will happen. Settled water with microorganisms. My friend has an aquarium, she often waters. He says that the flowers began to bloom well, especially violets.Login or register to leave comments Watch the video: HOUSEPLANTS - HOW and WHEN to WATER your Plants Watering Tips u0026 Techniques! (October 2021).