Sea Anemones have particular requirements for their success in a marine “reef” aquarium. The lighting is a particular item in point. The anemone requires the correct spectrum of light and of sufficient strength to permit the healthy internal growth of symbiotic algae, necessary for the overall health of the animal. Metal halide lighting, or the modern high intensity aquarium fluorescent light tubes, need to be supplemented with some “blue” lighting. Small pieces of meaty foods can be fed to the tentacles of the anemones that will pass them down to the oral disc (“mouth”). The stinging nematocycts at the tips of each tentacle can deliver a lethal “punch” to fish accidentally coming into contact with them, except those species which have an immunity from the poison.