Is there any reason why you don't want to use ABG mix? I have some in a planter in my viv, and the plants are doing very well. They include a fern, and alsobia, and a snakeplant. I also have some stuffed into a deep crevice in the climbing branch, and have grown moss on it from NEHerp's moss slurry. I also have a pothos rooted directly in the wet drainage layer, that is doing phenomenally, and a snakeplant rooted in same, that's at least alive.

I don't know about ecoearth because I've never tried to grow anything in it.