The chicken nipples are here. Now I need to know, A. How high above the ground should the nipples be mounted? My chickens are currently just over 8 weeks old but I'd rather set a block under it for them to stand on for a while than to try to take apart and remount the PVC pipe system as they grow. The breeds are Light and Dark Brahma, Delaware, Australorp, an unexpextedly bantam Langshan (whom I suppose will need a block all her life). B. How far apart in the pipe should the nipples be placed? I have 5 nipples and plan on using three of them in this system. I know that's one too many for the eventual 4-6 birds or even the current 12, but we overbuild everything.