I think some tortoises are especially sensitive to day length, and can detect it even if they are inside.
For those tortoises, even a 6 week brumation can really help jump start their appetite in Spring. If you live in an area that is too unstable outside (warm/cold/wet) to do this, then a fridge works well. I have used a small wine cooler (built in digital thermostat), which I love, because you can wind them down gradually by adjusting the temp down.
Just my experience, and it has worked very well for me.
For those tortoises, even a 6 week brumation can really help jump start their appetite in Spring. If you live in an area that is too unstable outside (warm/cold/wet) to do this, then a fridge works well. I have used a small wine cooler (built in digital thermostat), which I love, because you can wind them down gradually by adjusting the temp down.
Just my experience, and it has worked very well for me.