Hi all! I’ve been building a new outdoor enclosure for my 2 Russian torts at my new home. It’s a tort paradise! I’m thinking that a tortoise safe water feature would make the space complete. I’d watched a bunch of videos and started the work but then realized that it won’t be easy to clean and change the water without moving all the slate rocks. This probably isn’t an issue just for a nice looking water feature but I’m wondering about tortoise health. Would having the same water circulating through a pump all summer be unhealthy for them? I haven’t researched filters yet but I’m guessing that exists for fish ponds. Would that keep the water safe for my guys?