I am going to do the salt first, for probably 2 days. I will have pure nitroflurazone tomorrow, next day from Jehmco in NJ (naturally next day b/c of tri-state area). I ordered 300 mg, maybe about $30, I can buy wholesale from them, so not sure what reg price is. Nitroflurazone is what is in the recommended Binox. I am going to treat the whole system because it is bacteria and likely any/all the rays have it or will sometime. Nitroflurazone targets gram negative bacterium only. It will effect my nitrifying bacteria so I will be doing daily w/c's. Apparently it is easily absorbed by fish and will help combat any systemic infections as well.