Hello, I have an African bullfrog that hasn't eaten for around 3 weeks now.

The cage is about 2 and a half feet long, one and a half feet wide.

It lives by itself.

I have owned the frog for around 8 months now.

Temperatures are always around 83-87F, using a ceramic heat emitter and UVA light bulb.

I use eco-earth soil and it's always damp, Not too wet and soupy but always moist. Water is treated with chlorine remover. Has a water dish.

I don't handle it, only to move into a feeding dish.

It is winter here, is it normal for them to fast during winter? It's colors are normal, it doesn't look sick. The weird thing is I found poop in the water dish last night and it looked completely normal. I have offered appropriate sized dubias and it just won't eat