So - having read the threads here - for several years - I keep hearing 'you cant keep corals unless the tank is xxx months/years old' - on the other hand - I have also seen examples of people setting up tanks at reef shows, aquarium stores, and hobbyists - who set up their tanks and immediately add livestock. Frag tanks would be a perfect example. Would like to do a little poll - and then discuss. My opinion - There is no set time for adding coral to a tank. If the water parameters are stable - and proper - there is no reason coral won't grow and thrive. BUT - I want to hear opinions.