Shabby Lemmy

Guenther_Amanita in mosses

What kind of Sphagnum moss is this? What conditions does it prefer? (Picture gallery)

Hey y'all, I've got an ID request regarding the Sphagnum I'm growing, as well as some tips maybe?

The ID would be helpful, since I found out that different species need different conditions, especially regarding nutrient level and moisture.

I got a big handful from a hobbyist nearby, but sadly, he doesn't know what kind it is either. I've been growing it now for half a year, but I'm still struggling a bit.

I have split it up into a few separate pots. Theoretically, they are all in similar conditons, with the only difference being the location (outdoor vs indoor under a growlight).

Still, some look worse than others. I don't know what I'm doing wrong, but a few look healthy, while a few others have bleached or turned into mush. They all also don't grow nearly as fast as I would like it.

Conditions:

Bright light, often direct sun, but they never get hot or anything
I fertilized some at the beginning to test how they react, but I don't do that anymore, since a few got nutrient burn and algae.
They get flushed very regularly, either by rain or flooding.
I cut off the heads regularly to propagate them and promote bushier growth.
Most of them grow on LECA. The water level is usually almost at the top, and the moss is sitting on top. Always moist, sometimes soggy, sometimes a little dryer. I also have a few control samples on peat, but they don't look that much better.