Green algae help?

[JonathanTiki]

So I recently got in to the saltwater aquiarum and everything for the most part has been going good! I have a 5 gallon Fluval Evo aquarium that was cycled in the first week and a half as I had live sand, ammonia and bio spira added. I then added a small watchmen goby who has been doing amazing and eating regularly. I added a frag of zoas and a peppermint shrimp recently and they have also been doing good. My parameters are good as i check them very regularly and got them checked 2 days ago as seen on this picture. (Dropped my salinity as recoomneded to 1.024-5) They only concern I have is that I am starting to have a brigh/dark green algae form, or at least I think it’s that. I would like some help identifying that this is and if it’s good or bad. Thank y’all and can’t wait for some responses! 

[Donny41]

Just looks like film algae. Normal stage of a new tank. You can get an algae eating snail or two