Thank you everyone for all the advice! It's been extremely helpful. I have since moved my snail to another home. My sister is quite enjoying it. I have also taken about half of the stones out of the tank, leaving my tank half bare. My frog seems to enjoy hiding among the rocks, so I left some. It is much easier to feed without them though! I've also caught on to sinking the HBH food. It does normally float.

Everything is going well for me now! I'm really enjoying frog watching. He's growing so quickly!