Wow, I was not expecting so many responses, thank you all for all the great ideas. Unfortunately, my teacher said that peltier tiles cannot be used, and I have far too little knowledge about chemistry to make a new ich medication. There is also an improved electric sand vac that tank matez just created, so the need for that may be gone soon. I’ll likely look more into the idea of making a tool that pulls off what you scrape off the walls. Some of the automated glass cleaner ideas seem really good, but I doubt that I have enough skill to make something like that. I would be willing to try it, but grade depends upon me being able to make a working model of whatever it is. Thanks again for all the help with this!