I have 2 Whites, and I was wondering if I should have something under my substrate, like gravel. Also, I spot clean every day, and I was wondering how often I should completely clean everything. I was misting at first with treated tap water, but it was leaving chemical deposits on my tank walls, I have switched to distilled water now. I got most of the deposit off of the tank, but there were some more stubborn spots, and I was wondering if there was a way to get rid those without harming the frogs.