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I've been pretty happy with Southern Ag's Biological Friendly Fungicide and thought I'd try their calcium nitrate when my last batch of power grow I got from Amazon ran out. I've always known calcium nitrate to be pure white like fresh snow. This product had a tinge of ugly yellow to it. Like a nicotine stained teeth type of yellow. When I mixed my usual amount with hot water there was a strange oily residue floating in the middle of the cup. A considerable amount too. I completed my first...
Southern AG Calcium Nitrate contaminated with oily residue
Southern AG Calcium Nitrate contaminated with oily residue
from Hydroponics / Aeroponics https://www.rollitup.org/t/southern-ag-calcium-nitrate-contaminated-with-oily-residue.1032611/