You must keep in mind, that the game still is in development. The game works nearly perfect, I did not find any bugs yet. Of course not everything is ready. You have only two types of aquariums and one type of lamp. On the other side there are nearly 50 different corals already. So hopefully the complexity of the game will increase with further updates. If you have some experiance with real aquariums, you will find it very easy to keep your shops running and everyone alive. For me the grafic is beautiful and I enjoyed my first hours of playing very much.