I think our confusion was partly in converting ounces into grams into milligrams. Looking back it shouldn’t have been so hard. We muddied the water by adding a set amount of the Levamisole to different quantities of water.

Eventually a couple of us started with Charles's suggested 5 grams for 100 gallons. That easily breaks down into 1 gram for 20 gallons, 1/2 a gram for 10 gallons. Charles himself had previously suggested saving some of the Levamisole by just filling the 10-gallon tank half way and halving that half gram.

You had, I believe 52g, of which 46.8g was pure Levamisole. That is not a whole lot of extra filler.

When miskairal pointed out that a standard teaspoon held 5g, I though, why didn’t I just suggest that you take 10 baggies, put a level teaspoon’s worth in each and maybe one of those jells which pulls moisture from the air in each baggie as well. Then you could use 1/5 or 1/10 of a baggie for your treatment. And what guy has ever measured a LEVEL tablespoon? ;)

Yesterday I needed to mix a certain(eyeballed) amount of sodium thiosulfate to renew my 30-gallon RubberMaid trash is used to declorinate previously bleached equipment. It takes swishing it around in a jar with a little hot water to dissolve most of it. Then I added enough cold water that I could pour that pint into the larger container and it was good to go.I don't know why we got so hung up on those various solutions. Maybe different people  had different quarantine containers around the house.