I have become tired of my Ball Pythons pushing their water dishes around. They manage to tip even the heavy, no tip ones over. They never get tipped over all the way, of course, but they tip them slightly and water sloshes out. They also get substrate pushed in.

So I've been playing with the idea of the "Deli cup" water dishes. They are big enough, a bit taller (not to tall, though) and will be easy to swap out. I want to install a "mount" into the tub. Basically, a PVC pipe ring, that has the perfect diameter to hold the deli cup in place. I planned to hot glue the PVC down.

I've received the Deli cups today and was going to go to Lowes later to see what I can buy, PVC wise.

But there is just one thing that is bugging me. I don't want liquid urates or any nastiness to be able to creep underneath that PVC and Deli cup. That would defeat the purpose of making this easy and keeping it clean. So I thought about "sealing" the ring of PVC with some sort of silicone, just put a bead all around the bottom to keep any liquids or "stuff" from seeping under it.

Does anyone see a problem with that ? Which sealer would be "safe" for snakes ? Aquarium one?? How long should I "air it out" ?

I want to be sure I do this right...before I glue stuff

I have bought brand new tubs as well, so that I have an extra set. This way I can take my time setting this up.

Thanks for any help and ideas