Expand your threatened reef and create new homes for your fish by planting coral, gathering plankton, and feeding young polyps. Beware of rival fish, vile pollution and dangerous environments that will try to hold you back and destroy your creations! Instructions:

Click and Drag polyps and plankton to build your reef. Some environments can be interacted with, so keep your eyes open!

Press the pause button during play to pause the game and bring up the in-game menu, which includes options to help color-blind players.