Bristleworms, thoughts...

I've been pulling these out of my main tank the last couple days, these things were getting pretty big. So far I've pulled 3 of them and moved them to my fuge. I'm pretty sure there is only 1 left. I also thought it might of contributed to the death of my yellow watchman Gobey, he had a bad wound on his head for the last month or so and really never recovered. There was always this huge worm in his tunnels, I'm pretty sure I got him. Some people say there good, while others say get rid of them, thoughts?

Mark
 
I have the reddish pink kind in my tank. They have not bothered anything. They do help to eat food that have made it into cracks the shrimp or fish can not get to. They will also consume a small dead fish in no time if I am not around to take it out. They are a great clean up crew.
 
There huge, kind of tanish/light brown color. One has a pink tail (or head). I'll try to get a picture. I really wanted to get rid of the one hanging out in my Gobey tunnels. Maybe I'll just leave the other one alone.

Mark
 
Here a pix of the one that is left. He's a lot smaller than the others so I'll think I'm going to leave him be. He's fairly long but skinny. Can you tell if he is a bad or good one?
 
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