7 Day, Vacation Feeder That Is The Ideal Product When You Need To Feed Your Fish While Traveling * Each Time-release Block Can Feed Your 10 To 15 Gallon Aquarium For Up To 7 Days * Made With Pro Balance High-quality Fish Food * Contains Fish Favorites Like Tubifex, And Bloodworm Along With Essential Vitamins, And Minerals * Place One Block In Your Aquarium, And The Block Will Slowly Dissolve Releasing The Nutritious Freeze-dried Foods