The "Sears Conlin PMDD Formula" is on the bag of Greg Watson stuff: 1 TBL Plantex CSM 1 Tbl MgSO4 + 7H20 2 Tbl K2SO4 1 Tbl KNO3 I'm assuming that you don't need to add the 7 water molecules, that the tank would do that for you. I think this goes into a 2L bottle, then you add a measured portion to your tank (not the whole bottle). I got some dry ferts from June, and added the water, but I can't remember the dosage for the tank. It also formed a weird scum on the top which may have killed a bunch of my fish, so I would rather do the dry dosages instead. Susan -----Original Message----- From: gsas-member-bounces@thekrib.com [mailto:gsas-member-bounces@thekrib.com] On Behalf Of Matt Staroscik Sent: Thursday, March 01, 2007 9:09 PM To: Greater Seattle Aquarium Society member chat Subject: Re: [GSAS-Member] Aquatic Plant Stuff & Gregg Watson Ferts I have a bottle of trace ferts which I bought from a local agro shop a few years ago. I forget the name of the place, but they sold all kinds of custom mixed ferts and this stuff was sold as trace mix for fish tanks, a la the "poor man's dupla drops" recipe. (Unfortunately I don't have the exact mix of elements.) Anyway--I'll give you some if you like, I have far more than I need. (goes for anyone else too!) _______________________________________________ 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