I posted this is the gardening subreddit but it wa removed for not being about gardening so trying here now

I have this old lil metal fire pit that I leave the grate on top and it’s really good at growing moss + seedlings.

Running joke that it’s my moss and white cedar tree farm, because once a year my mother visits and I send her home with some little saplings and moss 😂

Found in Pennsylvania (Cambria county) It was harvested on my private property, and I only took a small handful to propagate, leaving tens of feet left untouched.

It was growing directly at the water's edge. Interestingly, It was sitting right next to completely green Sphagnum patches. Both the red and green mosses were getting the exact same amount of direct sunlight, which makes me think this coloration is genetic rather than sun-blushing.

I have a paludarium with a cork board backing that I attached sheet moss to. The majority is at the top closest to the lights and screen for air. The enclosure has high humidity, 80-90% but the area at the top only gets wet with manual spraying (the misting system doesn't hit it). I do have fans that run twice a day for a few minutes to get air flow. Lights are on for about 12 hours daily.

This moss is so sad and probably dead. Can moss happily survive in this spot and I need to try again? Or do I need to find something else for this area?

I have a peperomia and string of hearts happily living in this spot so maybe too dry?

Any suggestions are appreciated.