Maybe to go into a lil more detail w/out trying to post you a book here from my experience with growing (unwillingly) several types of algae in one of my new tank....
It often then occurs when tanks are newly set up and the tanks are not established yet and/ or the needed balances is out of wack (between nutrition available, plants, light., fish).
It can then be negatively enhance by either no maintaining your filter at all; OR maintaining it too much, again its about the right balance.
It can further be negatively enhanced by the water quality; which means too much food you're giving your fish and/ or too little weekly water exchanges. The food can easly be controlled by simply feeding every 2nd day.
For your particular algae also poor water circulation in certain areas of the tank play a role.
So all these named factors must be evaluated carefully, you seeing your tank and knowing what you're doing (or not doing) can do this far better then us far away.
This particular type loves growing on the gravel and glass near the front of your tank, some people also had success taping the front of the tank 'dark' with some tape & newspaper to block out access lights; personally I wanted to remove the algae period and not upset the look of my tanks with newspapers.
When I battled mine, I brought in thick blankets and towels and covered it up entirely with lights off for 4 days. After that when I took the blankets off all spots that previously had the green slime now looked like lil gray dust bunnies. I super vacuumed ALL of my gravel which resulted in ~60-70% water change that day, refilled with conditioned water and its been gone since then.
Please let me know how I can help you best; I have walked several people through this process over the last month via PM's & posts and so far been successful (see Hawkins post being the latest "PM consultation" lol).