Pondcare Pond-zyme w/ barley

I bought this today to help clear my rez.

http://www.petco.com/product/2706/API-PondCare-Pond-Zyme-Sludge-Destroyer.aspx

How much powder per gallon do you use?

copy paste from another site

This stuff is not immediately water soluble (I say not immediately because the enzymes break down the barley), but you'll notice is separates pretty easily. The instructions say to add 1 scoop per 100 gallons. The scooper had no size metric on it, so I measured using half teaspoons and found each scoop to be 2tsp. So 1 tsp = 50 gallons, 1/2 tsp = 25...1/32 tsp = 1.5 gallons.
So I added 1/16 tsp for my approximate 3 gallon reservoir

Thanks Hippie. That's make sense and will start running that strength today.