> From: THEPUPPYPIRATE@aol.com > Subject: [AGA Member] (no subject) > > Help!!!!!! Does anyone know if you can dose a tank with fish and plants with > potash K2O instead of KNO3 Whatever you have, it isn't K2O. The analysis of fertilisers is usually given in an antiquated way, in which potassium is stated as the equivalent amount of "K2O". This makes a bit of sense if the material is K2SO4, which can be regarded as a compound of "K2O" and SO3, but none at all for (say) KCl, which you may well have. That would have about 63% of "K2O", but no oxygen at all! -- Paul Sears psears_at_nrn1_dot_nrcan.gc.ca, 613-996-4171, facsimile / télécopieur 613-996-9400 Natural Resources Canada, 1, Haanel Drive, Nepean, Ontario K1A 1M1 Ressources naturelles Canada, 1, Haanel Drive, Nepean, Ontario K1A 1M1 Government of Canada / Gouvernement du Canada ------------------ 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/