You're not getting any replies and I don't know the answer but at least this will give you a bump. From your description it isn't possible to identify the algae. I assume you can't post a pic. In general, you divide algae into micro and macro categories. Most people find the macros to be desirable, as long as they don't overrun the tank. There are two ways to fight microalgae, nutrient deprivation and predation. You can reduce nutrients through reducing feedings, using ro/di water for changes and makeup water, phosphate/silicate sponges, better skimming, macroalgae competition and harvesting for export, and probably a hundred other means. For predation naturally you have to find something that will eat it. Herbivorous fish will eat many algaes but you don't want to add one if you don't have the tank size or continuous food supply necessary. Potential invert predators would include turbo snails, which IME will eat larger algaes than most snails but still won't knock down larger stands of micros. Emerald green mithrax crabs will eat some micros but they aren't completely reef safe in my experience. I use them though because they will eat valonia, which virtually nothing else will. Perhaps my favorite microalgae eater is strombus gigas. Queen conchs primarily eat diatoms from the sand but they are good hair eaters also. Some things like bryopsis I've never found anything that would eat. And some things are simply common progressions of the initial algae cycles of new tanks and will largely disappear on their own.
So give another try at identification and tell us how long the tank has been set up and maybe someone can provide you with more specific recommendations. Good luck.
So give another try at identification and tell us how long the tank has been set up and maybe someone can provide you with more specific recommendations. Good luck.
