Rabbit, just because you read it on the net and it's what you do, doesn't make it correct. Caryl has been a member for 9 years now, likely keeping fish before then even. Experience and personal preference are far more important than what you believe to be right. Like her, I also rarely clean my filters and have little/no issues. If you want to do it your way, fine, I couldn't care less. But do not shoot down Caryl for recommending a method that works not only for her, but likely several others out there. You do realise you don't HAVE to make every post negative and/or critical, right?