Feb 29, 2012 #1 M motocrossrider379 Aquarium Advice Apprentice Joined Feb 8, 2012 Messages 11 is the hammer coral agressive towards fish and corals?
Feb 29, 2012 #2 N Nosaj81 Aquarium Advice Activist Joined Aug 6, 2011 Messages 183 its not aggressive towards fish but if placed to close to other corals it can sting them