Baking gravel at 550 degrees Fahrenheit is a very high temperature and could potentially kill snails. However, it's not a humane method and there are other ways to address snail populations in your aquarium:
* Introduce natural predators: Certain fish like loaches and some types of shrimp will naturally feed on snails.
* Use traps: You can buy snail traps or create your own using a small container with food and a narrow entrance.
* Manually remove them: If you have a small tank, you can manually remove snails with a net or tweezers.
* Reduce food sources: Snails thrive on excess food and algae. Ensure you're not overfeeding your fish and regularly clean the tank.
Remember, it's important to treat all living creatures with respect and find humane solutions for any issues you may have.