Upper left, are you talking of the red macro? If so thats common red halymenia, not the pretty orange tipped dragons tongue, although I do have that too. If your talking about whats floating and is orange/brown/yellow then thats sargassum.
I actually really want to try pipefish or seahorses but the cost is not to my liking and I dont feed live foods, just a variety of pellets and coral foods.
And thank you. It certainly has become a macro tank. I love it. My family comes to see it and they say its beautiful and think its all corals lol. I tell them no its algae and they respond, isint algae bad?
Yes yes it is, but im a bad girl :P