Hello, I have 6 corydoras and it seems at least a couple or more prefer laying on their side possibly resting, but not sure. I would like to hope they are just in their comfortable sleeping position, because it is how Id lay and they find spots that dont seem like a bad snoozing spot. If I tap on the glass or shine a light on them, they are quick to "wake up" and swim and act normal without any issues or signs of distress. I attached a few photos of an example of one "snoozing" in a small hollowed-out log decoration. Is this something to be worried about? The log decoration is sitting on a pink coral looking thing, which is a weird spot for it but I put it there trying to make different hiding spots.