| | |  09-11-2011, 06:01 PM Quote: Originally Posted by MizTanks Thanks rmalone. I didn't even know sps could sting  I was thinking along the lines of growth aggressiveness. Glad I asked  | Miz, all corals are members of the phylum Cnidaria - which basically means they have cnidocytes, or stinger cells. Just like their cousins - jellyfish and anemones. Some are more toxic than others. I think, in general, the agressiveness is a measure of both that toxicity and the physical reach that a coral may have. |
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