Tony,
I put in less than 12 oz using a plastic picnic cup. This was in my 1/3 acre HBG/HSB/CC pond. It is 7-feet deep, with an average of around 4-feet, with steep sides. I too am using AquaShade. It has colored the three forage/settlement ponds below, that feed my 0.7 acre pond, but hasn't affected that pond - yet.
If I do it again, I'll start with about 4 oz.
Ken
