I am getting a Musk turtle within the next month or so, I have everything coming in now but I want to set up the tank at least a week before it gets here so that everything else gets an established population before then. One of the tings I want to establish in the tank before my turtle arrives is a population of smaller snails. I have seen recommendations online about Tadpole Snails and I have seen videos of Musk turtles eating them, which is what I ultimately want, but I also wanted to get all of your recommendations about this. for the bottom of the tank, I plan on using riverbed sand, as that is what I saw recommended online a lot for musk turtles, if that affects your recommendation. Thanks in advance for the input, and I would love to hear a bunch of different opinions on this.