Thanks, Scott From: "S. Hieber" <shieber@yahoo.com> > I guess that depends on who's doing the recommending. But of course! > 1.0 ppm. In fact, a good sign for me that PO4 is too low > is if BGA starts to show up. Bringing the PO4 back into Ok, I guess I need to check this out further. I was basing my reactions to the appearance of algae with what I read at wetwebmedia's faq sheet on algae control - http://www.wetwebmedia.com/PlantedTksSubWebIndex/algcontags.htm (Mainly because reading the faq at thekrib - http://www.thekrib.com/Plants/Algae/balance.html - tends to give me a headache. <g>) Since algae also seemed to coincide with increased levels of nitrate, that seemed to validate what these folks were saying here - http://www.algone.com/phosphates.htm.. I've never tested for phosphate, so I guess you'd recommend I add that kit? Regards, Dennis ------------------ 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/