During the night I used a flashlight to look for polyp extension on SPS frags, but instead I found many long white worm-like thick filaments protruding from two different holes in the rock. They waved around very slowly. Many were up to 3" long. By the time I decided to take a photo, most of them retracted, unfortunately, obviously not liking the light. (This rock came from the Gulf of Mexico and has been in the tank for 3 months).
In the photo you can see one "strand" remaining from the nearest hole. To the right and further back was another "set" of "worms" but in lesser numbers. There are two that can be seen in the photo.
Unless someone can identify these guys, with information as to whether or not they are harmful, I will take more photos tonight, this time having the camera ready to go. (I'm concerned that these "worms" may touch the frag to the right of the largest worm. There were at least a dozen of them protruding from the same hole before retracting because of the light.)
Thanks for helping!
In the photo you can see one "strand" remaining from the nearest hole. To the right and further back was another "set" of "worms" but in lesser numbers. There are two that can be seen in the photo.
Unless someone can identify these guys, with information as to whether or not they are harmful, I will take more photos tonight, this time having the camera ready to go. (I'm concerned that these "worms" may touch the frag to the right of the largest worm. There were at least a dozen of them protruding from the same hole before retracting because of the light.)
Thanks for helping!