Topics on Reef, Saltwater, or Fish only Aquarium Keeping, Fish Breeding, Coral Propagating, Fragging, and Trading.
2014年2月18日 星期二
Toadstool coral sleeping
Many corals retract their polyps while resting in the night while others extend it for feeding. Toadstool is the first one. This is how tight they can squeeze themselves into after lights are out
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