so i was christmas shopping and went past a salt water aquarium and caught a glimpse a featherduster. I asked the associate what it is and what its requrements are. He said they are filter feeders and dont require any other additives. I told him that i only have a 5 gallon (10 gallon after christmas) salt tank at the moment and if it will be fine in there and he assured me it would be. I want to get your guys opinion on this. Should i add stuff to my water or if any of you own one what kind of advise can you give me.