Maquarium is aquarium management software for the novice or expert fish keeper. It allows users to track chemicals, schedule tasks, keep notes, analyze expenses and manage inventory. Maquarium features a built-in database that contains information which helps you track and maintain the delicate needs of each fish, plant, coral and invertebrate in the tank. Furthermore, Maquarium helps the novice by warning of dangerously high chemical values and the recommended course of treatment. It also allows experts to set up custom warning values. Best of all it plays nice with your mac computer, so if your aquarium controller company isn’t showing your mac love this software is for you. You can purchase this piece for a cool $24.