I bought H2O soluable duramycin to treat some hens w/ snotty beaks. Its all TS had. The packet tells you how much each 6.4 oz packet makes (i.e 800mg in 12.5 gals water). What dose do I need to be mixing for my chix in a 1 gal waterer? What should the conc. of antibiotic be in 1 gal water? The woman at the TS told me 1 tsp per gallon, but didn't tell me if that was 30mg, 50 mg etc. Any help is much appreciated. Thanks!