coral learning

Reefkeeping poses many challenges, chief among them the need to integrate species that live in different natural environments–sometimes thousands of miles apart–and although good reef keepers know to stock only compatable species within a single tank, sometimes even compatable fish and corals need to learn how to get along. Some corals are photosynthetic, others eat plankton, and others eat larger, meaty foods (including fish — another reason to be careful what you stock in your captive reef). Since corals lack eyes, brains, and complex nervous systems, they react to the environment immediately and without considering consequences. Some sting, while others produce