Bristle Worms

[Seriak]

Alright this is a two part question.

1) Is there such a thing as too many bristle worms. My refugium is crawling with them. I mean they don't even hide anymore. They just cover every piece of sand algae and rock.

2) Can a bristle worm get too large and feed on other things in your tank. A cleaner shrimp has dissapeared in the last few days and I don't have any predators so it is either water quality (Which seems to be fine) or maybe a rogue bristleworm. I know I have too very large worms in my 90g. One has got to be over a foot when extended and another approaching that size. They come out when I feed mysis or silversides to the tank.