Moonshae, I would definately use a glass divider and some silicone. When the snake gets big enough, you can cut the silicone, and remove the glass. Years ago, before i made the switch to racks, I kept all my balls in tanks. I tried to divide some, for the smaller guys, using those aquarium dividers, and ones made from plastic. It never worked. It was just a pia, cause I kept having to fix it. The snakes would push on it, and knock it down, or break the seal. Tanks became a headache for me when my collection grew. So, I just built me a rack, and I'll never go back to tanks again. If you plan on more than two snakes, I would definately invest in a rack.