When you say you got some RO water, I'm assuming you spray your animals with it. Just as a heads up, but I am a little shy about just spraying with RO water. RO removes all of the bad stuff like chlorine and heavy metals, but it also removes almost all of the salt ions as well. The salt ions are the source of the lime deposits, but they also serve an important purpose in the body. They keep the concentration of ions in the body high enough for electrical nerve impulses to function correctly. I haven't heard of any first hand problems with geckos, but people have died from drinking too much distilled water...
Anyway, I still spray with RO/distilled water occasionally, but I try not to do it too often.