Is this green hair algae?

[gregzz4]

It's Turf Algae, and it will grow for a month or two, but should abate over time, once your tank matures

Keep it plucked and don't let it blow all over your tank
In the meantime ...
When I remove mine, I hold a cup of fresh water in one hand and pluck off the algae ( the whole growth ) with the other, dipping my fingers into the cup to rinse, and carry on with the next clump

It should eventually go away