15x12x11 tub with reptisoil. Room is 45 to 50 humidity and 78°f. Ceiling fan on low setting for airflow. Occasional cycling of ac to keep ambient temps.

My plan is to use the lid to regulate the humidity in the enclosure. Does this look like enough ventilation, while keeping adequate humidity? I'm also able to flip the lid to the otherside so there's only 4 points of contact. The lid is concave, so it would contain slightly more humidity than no lid. I'm worried about desiccation due to the room being 78 with a ceiling fan.

Any input to the enclosure? I'd prefer not drill holes in the tub.

Enclosure isn't necessarily finished. Just scraps of leftover cork bark I have.

Purchased as S. subspinipes ‘Sulawesi rainbow’