Hi, I have green algae growing in the waterers and other than elbow grease what is the best way to kill it off that won't hurt the chickens? Will the algae hurt the chickens? I have been reading about putting ACV in there-- how much per gallon do I need and does it need to be organic? Apple or white? I have made a few new nipple waterers and I am thinking that they are going to grow algae too because they are outside. Does using white buckets vs the orange Home Depot ones make it worse due to light filtering in? Also, will the ACV and the nipples for the waterers interact together and corrode the metal or create a chemical compound that I don't want? Sorry for all the questions! Any help is greatly appreciated!