Idle Fish Aquarium (MOD Money) - Create your own business that will make you a good income. During the passage, the player must do many things at the same time, in order to preserve and breed exotic fish species. They will also develop the aquarium design, sell it, and expand the possibilities. You can slowly start selling bottled oxygen produced by the fish you make. The larger your personal collection of seawater, the faster and more expensive you can sell the goods. Every time you complete a task, a new opportunity opens up and you get more money to grow your own business.