They are good in a lot of respects but can cause you issues with Zoos etc. Their constantly roving tentacles are an irritant.

huge worm!!
 

I think i am replying to the right spot? i have seen a worm like that but was NOT that big, i think someone called it a "Peanut worm" maybe someone has heard of these? the one we found while taking a tank apart was close to being 5ft long. It was horrible ewwwwwwwwwwwww.... :lol:

Peanut worms live in the rock. I don't think you'd ever find one that large.

Must have been some other type of worm that you seen.

Steve Weast's worm was some species of Eunicid. I have a number of them. I don't think any of mine are that big, but I have one that could be several feet long. (I've never seen all of him at once)

There are some things that don't live in my tank. Xenia, for example. I think he eats it. Frogspawn also. SPS are no problem.

I am sure there are creaters out there who think the same about people...
All we do is create waste, multiply, and kill, just like a virus ! eeewwwwwwwwwwwwwwww