IDMiamiBob wrote: > >I always use "pH Down". > OK. What was the question, again? ;-) BTW, "pH Down" only recently changed to eliminate phosphates. Other similar products haven't, and much of the stuff on shelves is old, anyway. I *never* use them because I intensely dislike massive algae blooms. Wright - -- Wright Huntley (510) 494-8679 Fremont, CA USA huntley@ix.netcom.com