little worms
 

my lights just whent out on my tank and i was looking at my new skimmer with a flashlight and was looking up at he bottom ofthe tank and seen thousands of very small worms going through the sand does anyone know what these could be

Without a picture it is difficult to identify them but all is good.
Congratulations. You have a very healthy sand bed.
A healthy sand bed stabilizes your water and provides billions of tiny critters that your coral eat.
That is why it is not a good idea to add hermit crabs and some predator snails like bumblebee snails because they devour the worms.

thats good ive had a few problams in the last month so i thought i would post these to make sure they werent bad