Thank you! I appreciate the concern, but they really have no trouble moving in or out, the substrate is not very level and on the other side of the dish and it is easier for them to move in an out on that side. There's only about half an inch of water in there and the other dish is a food dish that they also have no trouble moving in or out with the uneven level of moss surrounding both dishes. I have made a deeper impression for both dishes just to be safe. Thanks.Btw, I'm talking about the dish in the second pic. I see a piece of the clay saucer. Which also needs to be more ground level.