Originally Posted by
teen
http:///forum/post/2453890
depends on the amount you have. if they're are everywhere, they will start going after snails and possibly even corals. they're good in small numbers, but dont let them get out of hand.
I disagree with this to some extent. They get out of hand because there is a nutrient load in the tank. If you start getting a "problem" it is most likely due to overfeeding and overstocking. It is a problem with husbandry of the tank. When a tank has this issue, many other animals will start dying as well, and the worms will eat them. As we are not inclined to believe that our animals are dying at our hands, we tend to assume that the worms are attacking and killing them. IMO, this is not typically the case. There are predatory species of worms, yes, but they are not common. Nor is it particularly common for a scavenger species to "turn" predatory.
If you have a bristleworm "problem" the reality is you have a nutrient problem...and that is well within your ability to control. Assess your feeding, stocking and maintenance. Adding another animal to "control" the bristleworms is not, IMO, the best course of action.