Was posting this on the chicken floor thread, but realized that maybe we inexperienced cityfolk could use a little more detailed information about the use of lime. Of course I know that it comes from limestone, but I'm confused about how to buy it and use it. For instance, what is hydrated lime? Is there "unhydrated" lime? I know that people use it to keep flies down on farms and I think it's used with horses? So how do we use it correctly with our poultry? Can it burn chickens' feet? How about ducks? Do we need to apply it, wet it down and keep them off it for a certain amount of time? Can they safely ingest it like they do DE? How does it affect wildlife, like birds passing through? Any danger to the dog? Sorry about all the questions - it's not like I think this stuff is Agent Orange or anything, but for some reason I think it's really caustic. Hope I'm wrong. I'd like to attack the fly problem on all fronts, so would definitely like to use this if it's easily available and safe for the critters. Thanks in advance for any information. Adding one more question: when we're dealing with a small city lot and a limited amount of soil, how does the use of limestone ulimately affect the soil? Does it acidify it or neutralize (alkalyze?) it? So there wouldn't be any future damage for gardening, etc?