I second those result. Not the exact numbers but bga appearance with high N, low P and vice versa. sh --- Carlos Sanchez <tsunamicarlos@hotmail.com> wrote: > I had a cyanobacteria outbreak in my 55g while I was > gone. Tests showed that > the water had 3 ppm PO4 and 0 ppm NO3, so my observations > match with both of > yours. > > However, I've also had cyanobacteria outbreaks due to 0 > ppm PO4 and ~20 ppm > NO3. It occurred in my 55g when I had 4 wpg over it (and > knew nothing about > PO4 at the time). I suspect that the plants were > suffering from an extreme > PO4 deficiency that lasted for a couple months. ===== S. Hieber - - - - - - - - Aquascaping by Takashi Amano and more at the AGA 2004 Annual Convention Nov 12, 13 & 14; Marriott Crystal Gateway, Arlington, Virginia, USA Aquatic Gardeners Association www.aquatic-gardeners.org __________________________________ Do you Yahoo!? Yahoo! Finance Tax Center - File online. File on time. http://taxes.yahoo.com/filing.html ------------------ To unsubscribe from this list, please send mail to majordomo@thekrib.com with "Unsubscribe aga-member" in the body of the message. Archives of this list can be found at http://lists.thekrib.com/aga-member/