Welcome to the Planted Tank!
Algae can sure be a nuisance. The exact name/type often doesn't really help much. Could be hair, brush/beard or even staghorn algae.
The real question is, how to kill!!
There are a few different scenarios, what I have seen happening most frequently is that a relatively new tank runs out of nutrients, plant grow stalls, and that is when algae come into the picture.
As you know, to grow, plants need lights and nutrients. Looks like you got enough light and CO2.
So, my first question would be - what do you add in terms of macro (NPK) and micro nutrients?
A different scenario could be that this is a new tank that hasn't found its balance yet, and is experiencing the initial cycles of alga growth. In that case, keep doing what you are doing (helping plants to grow really well) and be patient for a few weeks. Often those algae explosions blow themselves out without much help or scrubbing.