Really would love to add some species like red gracilaria, red sea grapes, and a mermaid fan. Does anyone have experience with these? For lighting I have a single ai prime 16hd that I like to run the white at 47% on, to my understanding the macros would like that. Do I need to dose something like chaetogrow? Would I run into any issues adding these to a new tank (around 3 months old)?