---------- Forwarded message ---------- From: "K & A, P.A." <kapa at netrunner_net> To: Aquatic-Plants at ActWin_com Subject: PMDD Question Hi All! I've decided to give the PMDD a try. One question that concerns me is should I use tap water with my tank. Will the chemicals present in my tap water chance the standard PMDD formula? I'd appreciate any help. TIA, Art Giacosa/ Miami, Florida