I have tried looking for it online. seems odd that I can buy all manner of coral and fish online, but not some algae. Seems like its probably the best way to keep nitrates down. At my LFS they dont seem to have any Cheato unless its hidden? They do have some type of macro algae that look like long single blades of grass that seem to grow in a spiral pattern Like how a DNA strand twists. Its in several of the display tanks. So I was wondering what are some tank safe Macros? They arent particularly ugly, and they sure want to grow, why not focus all those nitrates on a couple pretty green things.