Thanks for the advice. My husband put a couple shims under the right side of the stand so I could lower the water a bit. The problem I have is that the filter has a minimum water line. I don't know how important that is (I don't want to burn out the pump). When I made the platform I thought it was going to be fine, but I should have made it higher. Now the water is lower under the land side. I'll see if it dries out over the next couple days. If not I may remove the substrate and add a layer of larger pebbles for better drainage. That will be messy, so I'm hoping not to have to do it.

My frogs are now going to be shipped next week so that gives me some time to figure things out.