Very interesting, thanks! I never would have thought of ADDING phosphate to reduce algae. I'll check out that thread. On Fri, Jan 8, 2010 at 11:03 AM, Seattle_Aquarist < Seattle_Aquarist@comcast.net> wrote: > Hi Matt, > > I had a problem with Green Spot Algae (GSA) and got rid of it by increasing > my dosing of phosphate (KH2PO4). First I cleaned my glass and removed as > much of the GSA as possible. Then I started gradually (don't overdo > phosphates or you will have Algae City!) increasing my dosage using weekly > increments. Every week I would re-clean my glass and I found as I > increased > my phosphate dosage the amount of GSA decreased. I am currently dosing > about 1/32 tsp per 10 gallons 3X week and it is not coming back. BTW, I > just started trying a similar procedure for Green Dust Algae (GSA) by > increasing my dosage of nitrogen (KNO3). Here is where I got the > information: > > > http://www.aquaticplantcentral.com/forumapc/algae/62516-method-controlled-im > balances-gda.html<http://www.aquaticplantcentral.com/forumapc/algae/62516-method-controlled-im%0Abalances-gda.html> > > Roy > > _______________________________________________ > GSAS-Member mailing list > GSAS-Member@thekrib.com > http://lists.thekrib.com/mailman/listinfo/gsas-member > _______________________________________________ GSAS-Member mailing list GSAS-Member@thekrib.com http://lists.thekrib.com/mailman/listinfo/gsas-member