If you look at the bait description for Lugworms you will see that it is for ocean (saltwater) fishing. Fishing in blackbrush is inland (freshwater). You wont attract any fish with the wrong bait so you can't complete the quest. You need a bait for freshwater or all-purpose. Try Moth Pupas or Bloodworms. I think the vendors at camps should sell some kind of bait.
Edited, Oct 17th 2011 9:01pm by Magnesium02
I knew there was something wrong. I just couldn't put my finger on it. Thanks a lot,, again !! ^^
Don't ask what your linkshell can do for you, but what you can do for your linkshell ...