OMG, can any 1 tell me whether this is good / bad

[onizukaa]

(from the picture above, this is just the front view of the 4 feet sump, there's alot more behind it and in the tank itself)

This abundance of Feather duster worm that appears at the coral chip (sump filter) have been multiplying and growing (when i never even feed them,supposingly they got all the nutriets from the tank \ left over food).

Can any 1 tell me whether its good / bad to have so many in the tank?

I have only 2 feather duster in the main tank (think it reproduced).

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ok , just some fun for the bros / sis who read this post.

can any 1 guess whats this.

Its very very easy. haha, just found it at the lettuce.

[yikai]

feather worms are good ma. means it shows ur water is very stable, got alot of good micro life growing in ur little biotope.whats wrong with them?

[onizukaa]

ic, so its good? great. :D:D

[yikai]

but it means ur water got alot of food for it to grow lor. check ur parameters. if its fine, then good. usually if too much nutrients, all this will grow to feed on it