That sounds like a fantastic addition to the game! Having liquid fertilizer tanks on your farm can definitely make refilling your sprayers more convenient and efficient. The price of $10,000 seems reasonable for a tank with a capacity of 15,000 liters. With a daily upkeep cost of $5, it's an affordable investment for players looking to streamline their farming operations. Being able to store and transport liquid fertilizer easily will surely enhance the gameplay experience for many virtual farmers.