Roland's bladder stones

[MPRC]

Glad to hear that they are rocks! You should xray him before you put him out for the spring/summer again and see what you can see.
My rock eater can't be left out without hawk like supervision or she will taste test everything.

 

[Kapidolo Farms]

That's a really great narrative of your care. That rock eating thing has been reported for redfoots that were studied in the wild then brought into pens, in the general area where they were wild. The speculation of the authors was that when denied seedy produce the tortoises ate rocks. It is further speculated that this is how the animals can move a bolus of food through their GI track. Grazers get much grass that creates the food bolus but tortoises like this tend to get that effect from seedy things.

So, you might try adding grass and/or seedy produce. I feed out much squash and opuntia. The opuntia has very long fiber in it. Redfoots are known for being seed dispersers.

This might be a way to reduce the desire to consume rocks, maybe not? Tortoises can also be creatures of habit.