I have just recently noticed an elevated level of worms in my aqurium 

 . Is this good or bad? I used to just see a few at night in the gravel. Then last night I woke up and saw one that was half brown half purple 
  
 . I also counted in the front of my gravel which is 36'' long and 2'' high 48 worms. About half were brittle worms and I dont know the other half 

 . Also I saw two worms that were brown with really long hair like things on them. They moved really fast compared to brittle worms! Is this happening to anyone else or do I just have the super breeding worms?  Please help me as I am going to upgrade aquariums soon 
  
  
 
Matt[/i]