I have a boy that I keep in a large glass vase (with a heater) that I change the water twice a week. I keep him in our master bathroom next to an outlet for the heater plug. It's very bright in this bathroom. Nonetheless, he's seems quite happy and thriving in this environment since I removed him from his 2-1/2 gallon heated tank where he seemed stressed.
Anyways, I've been covering his vase with a black piece of cloth (keeping an opening for air) at night, so when I turn on the light, he doesn't get started while asleep. Does anyone else do this?