Hi ! I'm hoping someone can help me with some antibiotic advice. We've got a year old Red Star Hen that sounds a little snotty--she has for a bit, I was hoping she'd get better with some rest and separation from the rest of the girls--she's no worse, but no better so I've had her separated from the rest of the gals for a week now. Everyone else is just fine, I think I got her out in time--before she "shared". Anyways, she's in our barn in an isolation cage with a heat lamp and a cozy little nest, but I really want to get her going on an antibiotic. I bought powdered Duramyacin-10 @ the tractor supply store and it says this on the back... Indications: Control of chronic respiratory disease (CRD air sac disease) caused my Mycoplasma gallisepticum and Eschericia coll, infections synovitis caused by Mycoplasma synoviae sensitive to tetracycline jydrochloride. Recommended dose: CRD AIR SAC DISEASE= Use soluble powder in the drinking water at a drug level of 400-800 mg tetracycline hydrochloride per gallon per day. Infectious Synovitis: Use soluble powder in the drinking water at a drug level 200-400 mg tetracycline hydrochloride per gallon per day (Administer for 7-14 days). So I figured I'd play it safe and do the 400 mg per gallon per day. Here's my thing though, it's in a package that is 6.4 oz of powder, and you have to throw out what you don't use every day and make new. I don't want to mix 25 gallons of water to get the right 400 mg/gallon dose--Is there an easier way to like "scoop out" how much I need from the package and mix up just the right amount every day?? I'm sure there is someone who is familiar with this-- Math is not my thing !! -- Thanks for the help I appreciate it !!