Good to hear, is there anything particular i should be looking out for that may be going wrong? I know the stuff was new, its just if it was bad (i.e. killed by some stupid stockboy who put it in a cold place or too hot of a place) what is gonna tell me the quickest if my fish are being stressed. i don't think I have ever seen my fish in distress, they are always breathing fine and I make sure to keep thier tank in top condition.