Okay... so my tank looks fine during the day with the light on... when you turn the light off at night, the little dudes come out. When I turn my light on in the morning there are all these bug looking guys crawling around on the rocks, but mostly on my back glass. A good amount too...They are clear and look a lot like the pictures of copepods I have looked up. After the light is on for about 5 minutes they all have vanished.. What are they.. are they bad.. how do I get ride of them??