The implication of sending blue and white porcelain in fish tank

In China culture, "water" means "wealth". From ancient times to the present, it has been a habit for officials and businessmen to put blue and white porcelain jars in the hall. Raising a pot of goldfish and koi fish not only shows its luxurious style and purifies the dry air, but also means "happy ever after" and "more than one year", with infinite scenery.