Im glad that I found something that I dont believe is in this list and Im happy to help with ideas... I used a caprisun box. I shortened the box so that it would fit for the width of my 20 gal tank. that gives me a window to watch her and I put a bigger hole on the side where the handle is so she can go in and out there and then I cut an extra hole up top for her. Its stong and I have plenty cause my daughters drink these all the time. Pheobe loves it.

Also what I coulda told you about before and didnt realise it was for my water dish for her I use one of those tv dinner containers that is that doesnt have the sections in it. I have a cpl of those and i wash them over and over cause ther easy to wash ( not dishwasher safe) but thats ok it dont take long to clean. plus ur not spending a lot and Pheobe is able to go all the in with whole body and still move. She likes it a lot. Always swimming in it.