C. ovata and C. pyramidalis temperature resistance

[Arash37]

I have both succulents and i have no idea where i should keep it during the winter. Should i treat them like most cacti plants (5 degrees Celsius and dry soil)? Or maybe a bit higher temperature (about 10-15°C) and give a little water once in a while? If i missed already existing thread about it please let me know.

[esp_imaging]

5deg C should be fine - even with a little bit of water at times if you have warmer periods.
I froze a C. ovata to death at about -2C last winter, comfortably frost free will be fine though.