So there's been a macroalgae growing in my tank for a while and it turned out to be Halimeda. I read up about it a bit, but to me it doesn't sound like the advantages outweigh the risk of them turning my tank green or devouring my calcium. Am I missing some pros? All I know is that it can absorb some nitrates, etc. I am worried that it will use all my calcium (I don't have a Ca test) and that there will be none left for future sps. I also read that if they grow well it's an indication of good water quality, does that mean that my tank is ready for some sps? My overall question is to pluck it out or leave it in the display?