For water colum dosing, look up PMDD or EI dosing, or Pfertz (liquid pre-mixed).
For root tabs, check RootMedic (capsule).
If you want to do it yourself, PMDD or EI is the basic water column ferts, and you can buy gelcaps via Amazon or Evilbay and fill them with "Osmocote Plus" (usually only available through Amazon or Evilbay), that you can insert into the substrate. I apologize if I've missed any of our sponsors.
Last edited by kevmo911; 08-19-2012 at 07:15 AM.
Reason: Osmocote is not spelled Oxmocote.