Also, your gauge really isn't measuring the temp and humidity down where the tortoise is.
Get a piece of tile for the feeding station and a clay plant saucer for the waterer. For really little babies I use the saucer from a cup and saucer combo:
The saucer filled with pebbles is on the left, the soaking dish is a bit too small now. I feed on a piece of broken cement.
I also have clay plant saucers in some of my smaller tortoise enclosures:
That’s a bit of an old pic I have something covering the top now. I have a heat mat on the side near her house but I’m not sure when I should be running it?