You dint have to break it, altho I'd be careful someone else had their betta get his head stuck in the hole of the flower pot.
I soaked my pot in water for a few hours. Set it bottom up on a folded towel. Set a flathead screwdriver into the bottom hole (big enough head so the driver sits on the hole or barely in it). Tap with a mallet a few times. This will pop out the entire bottom of the pot. Then lay the pot oh it's side & tap it again with the screwdriver & mallet. You could score the side (the terra cotta gets soft) to try & make a nice break. I didn't & mine mostly broke into two halves. You can then prop it up against one side of the hex (or an ornament/rock) for a shelter that takes up less space.
I soaked my pot in water for a few hours. Set it bottom up on a folded towel. Set a flathead screwdriver into the bottom hole (big enough head so the driver sits on the hole or barely in it). Tap with a mallet a few times. This will pop out the entire bottom of the pot. Then lay the pot oh it's side & tap it again with the screwdriver & mallet. You could score the side (the terra cotta gets soft) to try & make a nice break. I didn't & mine mostly broke into two halves. You can then prop it up against one side of the hex (or an ornament/rock) for a shelter that takes up less space.