Iv'e noticed that when i turn the lights on in the morning that there are creatures that scurry around on my LR and hide....the are almost transparent and have legs, i have only noticed about five at one time. <img src="graemlins//confused.gif" border="0" alt="[confused]" />
If so they are copepods/amphipods. A sign of a stable/mature system and good to have. They help keep deitrius cleaned up and can be a food source. Diversity is vital in a saltwater system and these guys are a good part of that diversity.