Here's what I did - YMMV. I wanted to get my ten gallons to 2 ppm. So I decided I would need 1/20th the dose needed to get 100 gallons to 4ppm, or 1/20th of a teaspoon. So I poured 20 teaspoons of water into a glass and then mixed it with 1 teaspoon of Fritz powder. I mixed everything very well and then added 1 teaspoon of this solution to my 10 gallons. I waited an hour for it to circulate (filter included) and then tested my water. The results were around 2ppm, maybe a bit higher but 2ppm or so as far as I could tell with my old eyes. I flunked chemistry in high school, so take my advice on a pinch or two of NaCl (haha! chemistry!). But it seems to have worked for me. What do you think, internet scientist? Also, please don't do this with fish or other creatures in your tank. I will update this review as my aquarium cycling adventure continues. At this point I can say with confidence that this material will help increase the ammonia levels in your FISHLESS aquarium. Also, I have enough of this material left over to tour all of the tanks at the Monterey Bay Aquarium. Twice.
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