[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: PMDD supplies
I get KNO3 and K2SO4 from a hydroponics company in Portland, Light
Manufacturing Company, http://www.litemanu.com, or 1-800-669-5483.
They will sell any amount, and I remember buying a pound of each for
about $3-$4/pound. I believe shipping costs as much as the chemicals.
MgSO4 is available from any drug/grocery store. Cheap.
Trace elements are hard to get, and when my supply ran out I tried
using Aquarium Pharmaceutical's Aquatic Plant Stimulant. It has all
six trace elements called for in the PMDD recipie. I use the Aq.
Phar. recommended dosage, and I haven't noticed any difference between
it and the "real" mix. You can get this at Home Depot, in the pond
section. A 16 oz. bottle costs $9, and it treats 9,600 gallons.
$20 worth of these supplies is about a three year supply for my 90