It is very normal for them to get bored with the food. Kind of funny, because they don't seem to get very bored with their favorites like Wave's apple for example, but they do seem to get bored of the stuff they could take or leave. Tofu is one of those things that some think it is okay and others don't. I believe there are some past threads about tofu. I would have like to see the glider taking turns eating out of both hands I bet it was so cute!