If it's the bag I think it is,

there are 280 grams in the pack and those 280 grams will make:
128 gallons of water medicated to 800mg
256 gallons of water medicated to 400mg
512 gallons of water medicated to 200mg
One gallon of water medicated to 800mg needs 2.1875 grams. It would take some effort, but one could try measuring out the bag in teaspoons and do the math.
I know that the dose for Duramycin 10 (tetracycline, not oxytetracycline)

is 1 tablespoon per gallon, so it really does depend on the the brand and the density/weight of the powder. Remember that one teaspoon of flour will not be the same weight as one teaspoon of sugar.
-Kathy
there are 280 grams in the pack and those 280 grams will make:
128 gallons of water medicated to 800mg
256 gallons of water medicated to 400mg
512 gallons of water medicated to 200mg
One gallon of water medicated to 800mg needs 2.1875 grams. It would take some effort, but one could try measuring out the bag in teaspoons and do the math.

I know that the dose for Duramycin 10 (tetracycline, not oxytetracycline)
is 1 tablespoon per gallon, so it really does depend on the the brand and the density/weight of the powder. Remember that one teaspoon of flour will not be the same weight as one teaspoon of sugar.
-Kathy
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