Beautiful composition and setup! It looks so natural!
Quick question...you mentioned some clay in your substrate...is that a source of iron?
20G tropical tank (re-learning about live plants & lighting conditions)
30G tropical tank (also re-learning plants here)
40G goldfish tank (natural rock hardscape, just a java fern here)
60G (has plants now...more education going on here also)
10G (live plants and a betta)
"Adopt the pace of nature; her secret is patience." Ralph Waldo Emerson