have some good growth on the HC, the browning is from it being in the bowl for 4 weeks before it without light and CO2, but it's becoming rooted really well and is starting to take off. I am pretty sure i'm either gonna have CPDs in here or OEBTs still haven't decided yet.
some moss growing on the rocks:
close up of growth:
some plant that hitch hiked in on the rock in probably a seed