We have some rules for the powan tank in the classroom.

1. Never put your hands into the tank.
2. Don't do anything at the tank without getting permission.
3. Make sure the water is around 4 degrees, or they will hatch too early.
4. Make sure the lid is closed at all times.
5. Be careful not to let any eggs go beside the frozen water bottles.
6. Move the eggs carefully using a pipette, if this happens.

By Athena