I don't think it will hurt them. RO water is deficient in minerals (thats the whole idea) but your snakes should be getting all their minerals from their food anyway. Most people who ask this question thinking that they should be giving their snakes RO water because it's better for them then tap water. If it's good enough for you to drink, it should be good enough for your snakes. (of course there are some places around the country where the water is so bad that people and their snakes shouldn't be drinking it)
Mark
>>i just bought a huge r/o di filter and wanted to know if its ok to use for snakes. some people have told me just to use the run off water to feed snakes, because there is still Ca in the water along with other elements which are beneficial. they also stated that the r/o di H2O is too soft for them. ISNT RAIN WATER THE SAME? DOES IT REALLY MATTER?